1. (noun)defeat, licking an unsuccessful ending to a struggle or contest Synonyms: thrashing, trouncing, frustration, whacking, drubbing, defeat, beating, lacing, licking Antonyms: triumph, victory
2. (verb)frustration, defeat the feeling that accompanies an experience of being thwarted in attaining your goals Synonyms: frustration, thwarting, licking, defeat, foiling Antonyms: victory, triumph
3. (verb)get the better of, overcome, defeat win a victory over Synonyms: surmount, vote out, overwhelm, overcome, subdue, kill, get the best, whelm, overpower, shoot down, defeat, vote down, get the better of, sweep over, have the best, overtake, get over, master Antonyms: victory, triumph
4. (verb)kill, shoot down, defeat, vote down, vote out thwart the passage of Synonyms: pour down, drink down, toss off, shoot, wipe out, overcome, buck, kill, down, bolt down, pop, stamp out, belt down, tear, vote down, shoot down, vote out, charge, obliterate, land, get the better of, turn thumbs down, defeat Antonyms: victory, triumph
Synonyms, Thesaurus & Antonyms of 'defeat'
English Synonyms and Antonyms
1. defeat Strike is the word for a single blow; to beat is to strike repeatedly, as a bird beats the air with its wings. Others of the above words describe the manner of beating, as bastinado, to Synonyms: beat, bastinado, chastise, overcome, spank, thrash, batter, conquer, pommel, strike, vanquish, belabor, cudgel, pound, surpass, whip, bruise, defeat, scourge, switch, worst, castigate, flog, smite Antonyms: fail, fall, get the worst of, go down, go under, surrender
Synonyms for defeat 
