失う【うしなう】
to lose, to miss (a chance, opportunity), to lose (a loved one), to be bereaved of, to concede (goals, points, etc.)
失礼【しつれい】
discourtesy, impoliteness, excuse me, goodbye, to leave, to be rude
失敗【しっぱい】
failure, mistake, blunder
失礼します【しつれいします】
excuse me, pardon me, I beg your pardon
失望【しつぼう】
disappointment, despair
見失う【みうしなう】
to lose sight of, to miss
失点【しってん】
lost point (in a game), point given away, conceded goal, run charged to the pitcher, blunder, mistake, error
過失【かしつ】
accident (caused by negligence), error, blunder, fault, defect
失策【しっさく】
blunder, slip, error, error
敵失【てきしつ】
error made by the enemy or opposing team
喪失【そうしつ】
loss, forfeit
過失致死【かしつちし】
involuntary manslaughter, accidental homicide, negligent homicide
失跡【しっせき】
absconding, disappearance
失脚【しっきゃく】
losing one's position, losing one's standing, downfall, fall (from power), being overthrown
得失【とくしつ】
advantages and disadvantages, plus and minuses
栄養失調【えいようしっちょう】
malnutrition
失速【しっそく】
stall, downturn, slowdown, slump, weakening, decline
失明【しつめい】
loss of eyesight, loss of sight, going blind, blindness
消失【しょうしつ】
disappearance, vanishing, loss, dying away, wearing off
失意【しつい】
disappointment, despair, despondency, broken heart, adversity