• 失策しっさく

  blunder, slip, error

• 失望しつぼう

  disappointment, despair

• 失敗しっぱい

  failure, mistake, blunder

• 失跡しっせき

  absconding, disappearance

• 失神しっしん

  faint, swoon, losing consciousness

• 失明しつめい

  loss of eyesight, loss of sight, going blind, blindness

• 失速しっそく

  stall

• 失態しったい

  blunder, fault, error, mistake, failure, disgrace

• 失業しつぎょう

  unemployment

• 失踪しっそう

  disappearance, running away, going missing, absconding

• 失恋しつれん

  disappointed love, broken heart, unrequited love, being lovelorn

• 失意しつい

  disappointment, despair, despondency, broken heart, adversity

• 失墜しっつい

  abasement, fall, forfeiture, sinking (in people's estimation)

• 失脚しっきゃく

  losing one's position, losing one's standing, downfall, fall (from power), being overthrown

• 失礼しつれい

  discourtesy, impoliteness

• 失格しっかく

  disqualification, elimination, incapacity

• 失ううしなう

  to lose

• 失点しってん

  lost point (in a game), point given away, conceded goal

• 失敬しっけい

  rudeness, impoliteness, disrespect, impertinence

• 得失とくしつ

  advantages and disadvantages, plus and minuses

• 紛失ふんしつ

  loss, going missing

• 喪失そうしつ

  loss, forfeit

• 敵失てきしつ

  error made by the enemy or opposing team

• 損失そんしつ

  loss (of assets, profit, etc.)

• 過失かしつ

  accident (caused by negligence), error, blunder

• 失敗談しっぱいだん

  failure story, horror story

• 見失うみうしなう

  to lose sight of, to miss

• 遺失物いしつぶつ

  lost article, lost property

• 過失致死かしつちし

  involuntary manslaughter, accidental homicide, negligent homicide

• 栄養失調えいようしっちょう

  malnutrition

• 失礼しますしつれいします

  excuse me, pardon me, I beg your pardon

• 失礼しましたしつれいしました

  my apologies, I'm sorry, excuse me

• 失しつ

  loss (of something), disadvantage

• 失費しっぴ

  expenses

• 失認しつにん

  agnosia

• 失禁しっきん

  incontinence

• 失地しっち

  lost territory

• 失政しっせい

  misgovernment

• 失陥しっかん

  surrender, fall

• 失投しっとう

  careless pitch

• 失活しっかつ

  deactivation

• 失名しつめい

  name unknown

• 失血しっけつ

  loss of blood

• 失透しっとう

  devitrification

• 失考しっこう

  misunderstanding

• 失職しっしょく

  losing one's job

• 失命しつめい

  losing one's life, dying

• 失着しっちゃく

  mistake, negligence

• 失保しつほ

  unemployment insurance

• 失念しつねん

  forgetting, lapse of memory