defeat 12 antonyms and opposites of defeat. Verb — To beat someone in a fight, contest, or competition. Synonyms for defeat vanquish overcome beat bring down convince chew up eat someone for breakfast eat someone's lunch flog kick ass humble malavogue murdelize outfox outguess outrun outsmart outwit overpower overwin own pulverise pwn reduce spank steal the show subdue subvert surmount trounce thrash Antonyms for defeat bite the dust capitulate eat someone's dust forfeit give up lose strike one's flag surrender relinquish wave the white flag yield victory ← Back to the full definition of defeat