- 失敗【しっぱい】 - failure, mistake, blunder 
- 敗北【はいぼく】 - defeat, loss, reverse, setback 
- 腐敗【ふはい】 - decomposition, putrefaction, putrescence, spoilage, corruption, degeneracy, decay, depravity 
- 敗退【はいたい】 - being defeated, being eliminated (from competition) 
- 勝敗【しょうはい】 - victory or defeat, outcome (of a game, battle, etc.) 
- 敗れる【やぶれる】 - to be defeated, to be beaten, to be unsuccessful, to lose 
- 敗戦【はいせん】 - defeat, lost battle, losing a war 
- 惨敗【ざんぱい】 - ignominious defeat, crushing failure, utterly beaten, overwhelming defeat 
- 敗者【はいしゃ】 - loser, defeated person, the defeated 
- 連敗【れんぱい】 - consecutive defeats, series of defeats 
- 惜敗【せきはい】 - regrettable defeat, defeat by a narrow margin 
- 敗因【はいいん】 - cause of defeat 
- 一敗【いっぱい】 - one defeat 
- 敗訴【はいそ】 - loss of a (legal) case 
- 完敗【かんぱい】 - (suffering a) complete defeat, utter defeat, annihilation 
- 大敗【たいはい】 - crushing defeat 
- 敗血症【はいけつしょう】 - blood poisoning, septicemia, sepsis 
- 全敗【ぜんぱい】 - complete defeat, losing all of one's matches, finishing the tournament with no wins 
- 零敗【れいはい】 - losing without scoring, shutout, whitewash, having no losses, being undefeated 
- 戦敗【せんぱい】 - defeat in war