The word "withstands" means to resist, endure, or hold up against something. The antonyms of "withstands" are to concede, surrender, yield, and give in. These words indicate a lack of resistance or inability to endure. To concede means to give up a position or authority, whereas surrender is to give up completely. Yield denotes giving way to pressure or influence. Giving in means to accept defeat or compromise. Therefore, using the antonyms of "withstands" in a sentence can help to convey the opposite meaning, where the subject fails to resist or overcome a challenge.