Here's how this is going to work. First, I'll list The Flash's powers and abilities, and why he can't be defeated.

Then, you must come up with a character, any character, that can defeat The Flash.
I already know a few Godmodding characters that The Flash probably wouldn't be able to beat, but I wanna see if you can come up with any.

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**Copypasta from [x] , which is a lot more accurate than my explanations.

**I've omitted a few powers that I deemed not important to Flash's combat ability.

Speed Force Conduit: Speed Force is a vaguely defined extra-dimensional energy force from which most superspeed-powered heroes draw their powers. The Speed Force serves as the ultimate measure of velocity in the DCU. They are often referred to in terms of barriers: Sound barrier, Light barrier, Time Barrier, Dimensional Barrier, and finally the Speed Force Barrier. While all speedsters are powered by the force, West mainlines the power from the force itself and cannot be cut off from the source, unlike the others. Wally is the fastest of all the Flashes and the fastest man that ever lived. He is arguably the fastest being that has ever existed. He is currently fast enough to easily break all the barriers and even enter the Speed Force. Wally has, on several occasions, traveled much faster than light and been pulled into and exited the Speed Force by his own volition. The Flash is considered to be one of the most formidable and powerful meta-humans on the planet.

Superhuman Speed: It appears that the Flash may run at any speed that he thinks is possible. Wally West is by far the fastest being on the planet, and is arguably the fastest being to exist. Theoretically, speeds greater than Mach 10, are dangerous to the people and to the environment. This speed would still be the equivalent to approximately 2 miles per second; allowing him to cross the United States in about 23 minutes, or circle the world in about 3 hours but the Speed Force has shown that if needed Wally West can use it to prevent such effects from occurring, hence why he is able to run at speeds much faster than light on the planet Earth without it having devastating effects on the planet. He can also run across bodies of water and up the sides of buildings. Wally has shown that he can achieve practically any speed he wishes and that there are no limits to his speed. He has been able to casually move beyond the speed of thought, easily move so fast that even an attack moving at the speed of light seems to be standing still and at the same time scans the face of over five hundred thousand people for a specific expression in less than a pico second. He is able to easily save and carry over half a million people 35 miles away from a Nuclear Warhead that had already detonated including the ones at ground zero in a 0.0001 microsecond, and even move so fast he exists everywhere at once. He is able casually reach speeds such as 500 times the speed of light. He has moved and ran so fast he was capable of outrunning and defeating death itself (the Black Flash) by outracing it to the end of time/space, past entropy, the next Big Bang and into the next Universe. His speed is so immeasurable that he has moved and reacted by the attosecond (an attosecond is one quintillionth of a second. To put this in perspective, one attosecond is to one second, what one second is to the age of the universe.), and has even reacted and calculated by the zeptosecond (Which is one trillionth of one billionth of one second.) and has other feats of speed that are immeasurable.

Steal Speed: He is able to "steal" speed and/or momentum from anyone or anything, including beings such as Superman or Inertia effectively turning them into living statues. Also can steal speed from bullets and other fast moving objects thrown at him or at others. This ability is so great, that he once stole speed from the entire planet, and its population, including the super-humanly fast beings such as Superman, Jay Garrick etc.

Speed Force Aura: The Flash's body is surrounded by what he calls his "speed force aura". This aura protects him and anyone who is running with him or carried by him, from the effects of using his speed. This includes friction and airborne particulate matter. It also protects him from injury from high speed impacts such as punches he delivers and receives from his opponents. With this aura he is able to absorb kinetic energy. He possesses a level of superhuman resistance to injury which at times does extend far past normal physical interactions, as received from normal combat. Wally can sync his aura with his children, giving him the ability to pull either of them to him with a thought.[17]

Superhuman Endurance: The Flash possesses vast superhuman endurance that is nearly inexhaustible. He was able to run non stop for over 10 days straight without tiring against Krakkl (Who was stealing the speed of his entire race and adding it to his own. A race where every single individual could achieve the speed of light.), through time and space across existence (Everywhere from the 4 dimension to the big bang was their track field.) at speeds so far beyond light and so unimaginable, he was constantly breaking through all the barriers and even brushed the true Speed Force itself directly.

Self Sustenance: He has shown that he can survive in harsh environments such as space without any hindrance and has shown that he can gain all the energy he needs from the Speed Force's infinite storage of energy.

* Infinite Mass Punch: Traveling near the speed of light acquired the relativistic mass of such speed to impart blows which could hit with a force greater than that of "a white dwarf star", Flash's own durability regulated by the Speed Force in such cases. Realistic effects take over as a body approaches light-speed (His control over his powers and the Speed Force is so great, that he can choose to ignore this realistic effects if he wishes too.). Visual input will begin to blueshift and his body's mass will increase towards infinity. With this ability, he was able to knock out a martian as durable/tough as Superman from Mount Rushmore to the plains of Africa, all with one punch.

* Time & Dimensional Travel: West has shown to be able to traverse time and dimensions with his own powers, unlike Barry Allen, and the other speedsters. However, Wally now accelerates to the point that he is skirting the very edge of the Speed Force dimension or even entering it. He can traverse along the time-stream to specific points as they become visible, much like watching a movie in fast forward or reverse. In order to enter the Speed Force and time travel to different periods, he must exceed light speed, which he can easily and instantly do.

* Regeneration: Accelerating his healing factor while using the Speed Force to sustain him, he could heal from any injury instantly, without prematurely aging like his alternate version, Walter West.

* Phasing: The Flash has always possessed the ability to control his speed and angular momentum at the molecular level, and control his molecular interactions to allow his body to pass through any substance. If he chooses Wally can excite the molecules of whatever substance he vibrates through to critical mass causing it to explode. While in an intangible state, the Flash is immune to any airborne viruses and can breathe regularly. He can also vibrate so fast that light does not reflect off him, rendering him invisible

* Increased Perceptions: The Flash possesses the ability to alter his perceptions so that falling objects can appear to be standing still and can be caught and moved back to their normal position. He can disarm or jam any number of opponents weapons before they are even aware of his movement and can hurl small projectiles at hypersonic velocities. His ability to alter his own perception of time is so great, that if he wishes, the tick between a second can pass for millions of years. He can even push this ability to the point, that to him, it's as if the Universe is standing still. It does not truly stand still, it is his own perception of time that seems to stand still, and his body automatically adjusts to his perception, hence, the slower he views the world, the faster his body moves through time/space to adjust to his perception. He can even all together, break time through the time and dimension barrier, to truly be beyond time/space. He can do this so quickly as to have it happen invisibly to the normal human eye. He can effortlessly strike a single opponent or multiple opponents million of times in a second.

* Supercharged Brain Activity: The Flash's mental abilities are also increased in speed, simple computations can be done at lightning speeds, and his ability to perform normal feats at increased speeds has allowed him to build hundreds of force field generators in a matter of minutes, move sandbags to cover a beach or search an entire area for something as small as a paper clip. Wally can also read at super-speed, but rarely takes advantage of this ability to learn at increased speeds, although Jay Garrick has done so and has become a jack of all trades in several disciplines and languages.

* Vortex Creations: By running in a circle at a certain speed, Flash is able to create a vortex with a variety of affects. One effect is pulling the air away from the center in order to suffocate an enemy. Another effect is levitating whoever and whatever was in the center. Also, able to send anyone or anything into another dimension when running around them. Some other effects are acting as barriers to movement or funnels for toxic gases. The Flash also can spin his arms to create directed funnels of hurricane speed air that can knock down barriers or reduce the speed of a falling object. When putting out forest fires, what flash does when he runs around the perimeter is create a pocket tornado. The updraft lowers the temperature inside the funnel and raises the fire off the ground which takes away its fuel source.



TL;DR Version

- The Flash is faster than you can see him.
- He can hit you a thousand millions of times without you noticing.
- He can phase through physical objects. You can't touch him.
- He can explode you by phasing through you.
- He can vibrate so fast that he does not reflect light, therefore becoming invisible.
- He can speed up his healing factor so fast that injuries heal instantly without having any long term consequences, although not needed since you can't even touch him in the first place.
- He can take away your speed and freeze you.
- He doesn't even need to freeze you, as he can slow down his perception of time, practically making everything around him slower or completely still.
- He can punch you at the speed of light with infinite mass, which would probably vaporize you.
- He can travel through time and stop you from existing.
- He can survive indefinitely without food or water, even if in the vacuum of space.

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And on to the characters I believe The Flash wouldn't be able to beat. Does not necessarily mean that they can defeat The Flash either. It's your job to find more characters that fit this criteria.

Spoiler:

Dr. Manhattan - He's practically God. He can't die, at all. Even if The Flash were to travel back in time, Dr. Manhattan would have foreseen that and take measures to prevent it. Alucard - As of now, his existence is no longer bound by anything. He exists if he wants to exist. Even if he were disintegrated down to the electrons, he'll still live because he just can. Taking out his mother wouldn't do anything either.

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DEADPOOL

Trained in every martial art.
Super strength and agility.
A healing factor that can even SURPASS Wolverines!
He talks so much that he can actually annoy an opponent into submission.
While seeming goofy and such he is quite intelligient AND crazy. A dangerous combo.

As for all the hits and kicks too? Deadpool can teleport. Super-speed is nothing compared to instananeous travel. And while the flash CAN go the speed of light he can't instantly go that speed. He needs a running start.

And no matter what the flash does he can't kill Deadpool. Why? Because he is cursed. Thanos, who is considered a God and current lover of Death herself, CURSED Deadpool with life so that he can never be with Death. Also Flash can't go back in time to stop him because even Deadpool has no idea who his Mom is.

I'm typing this in my TA period so I can write more later but this is all the big important stuff.

Wait, Deadpool can teleport?

Still, Flash can travel back in time to before Deadpool got his powers or before he got cursed and kill him.
Doesn't really have to be killing his mother.

Ah yes but Deadpool's teleporatation device can also travel in time, albeit with some glitches. He did it and saved Captain America in the past. So he could just go back in time with The Flash and stop him.

Flash takes Deadpool's device, breaks it, and then goes back in time.

Deadpool has a room full of them. Literally. And if Flash breaks a whole room of them he knows alot of people who could quickly make more.

Weasel
Hank McCoy (The Beast)
Charles Xavier
Pim (GiANT Man)
Mr. Fantastic
...the list goes on. Deadpool has connections.

Flash takes Deadpool's speed away. He could then either leave him frozen there for all eternity or travel to the past at his leisure and kill him.

Before that deadpool would go to the future, tell deadpool to go to the past to tell another deadpool to go farther in the past then that deadpool will go to the future to tell another deadpool to go back into the past and kill the flash before he gets his powers.

It will be so confusing that the flash won't know which Deadpool to go after! And if it causes a paradox oh well because Deadpool just don't give a damn!

The Flash can travel faster than the speed of thought almost instantaneously. So unless Deadpool comes up with his convoluted plan in less than 0.0001 seconds, he wouldn't even notice Flash taking his wallet, let alone carrying out the plan of his.

That's the thing about Deadpool though! Like that thing I just said. He doesn't think. He just acts. He is crazy and random.

Involuntary motions wouldn't have him outpacing a person who can travel faster than he can begin the process of blinking. He wouldn't react fast enough, anyways.

Case in point, this (He almost ripped a hole in space/time too, and he wasn't even going at the speed of light). Try not using this against him, since it was only his first time using the Speed Force, and he actually does use it again more than once; in the comics, at least, which is actually more canon than the show.

Look how he zips around the entire earth eight times in less than 30 seconds (minus the dramatic little scenes). His first time around the earth was about ten seconds, so I'll use that for my rate.

Distance of the earth is about 24,000 miles.

Approximate speed would be about 2,400 miles per second, just about under the distance of the U.S. from east to west coast (~3,200 miles), or 8,364,000 mph, which is over 11,000x the speed of sound. The fastest jet plane only topped 2,400 mph (3x speed of sound).

Now just think about that on the scale of one city block (amount of area in which Deadpool would be able to fight readily in). The average block is about 1/5 of a mile.

From the calculations, Flash can travel 2,400 miles in one second, he would then be able to travel 1 mile in 0.0004 seconds, 1/5 of a mile in 0.00008 seconds.

The average human reaction time is about a quarter of a second (0.25 seconds)
Even given that Deadpool's reaction time is probably a couple times faster than the average person, perhaps say 0.01 seconds, Flash is still 125x faster than that.

After re-reading up on his powers and his abilities [x], Flash actually has a reaction time of one attosecond, or 0.000000000000000001 seconds.

Notably, the average human blink is about 0.33 seconds. Which means the Flash can travel around said city block more than 4,000 times before one blink has been completed.

Conclusion - Deadpool would be toast before he noticed.

Then shouldn't this be a God-Modding character? Not many beings can defeat The Flash then according to his abilities and such.

That's my point. Only god-modding characters can beat other god-modding characters, hence I put Dr. Manhattan and Alucard as valid opponents.

How about...Green Lantern? He could put a field around flash. And while he can phase through solid objects I doubt he can phase through lantern energy. And if he attempted he would risk his molecules disconnecting. Leaving him utterly dead.

The question is, can the Green Lantern even create the field fast enough?