失態・失体|しったいshittai[0]heiban (flat)

1. nounblunder; fault; error; mistake; failure; disgrace
   あの事件じけんは大統領だいとうりょうの失態しったいであった。↗

   That incident was a black mark against the president.

• Synonym過ちあやまちNeutralA fault or wrongdoing, including improper conduct between men and women; a native word with a moral slant, where 失態 stresses the embarrassment of losing face.
• Synonym失敗しっぱいNeutralFailure or not managing to do something; the most broadly used word, and unlike 失態 it does not carry the nuance of disgracing yourself.
• Synonym間違いまちがいNeutralA mistake or error; the everyday word used most often, focused simply on getting something wrong rather than on the loss of face 失態 implies.
• Synonym落ち度おちどNeutralA blameworthy lapse or fault, as in 「こちらに落ち度はない」; the emphasis is on responsibility, not on the public embarrassment of 失態.
• Synonym過誤かごWrittenAn error or mistake; written/formal prose, tending to appear in medical and legal contexts.
• SynonymエラーNeutralA loanword for an error or slip; also a fielding error in baseball. Common in speech and in IT.
• Synonym失策しっさくNeutralA blunder or misjudgment, also a fielding error in baseball; the focus is on faulty judgment rather than disgrace.
• Synonym過失かしつNeutralNegligence or carelessness, as in the legal term 「過失致死」; the point is lack of care, not embarrassment.
• Synonym錯誤さくごWrittenAn error or misrecognition; in law, a mistake in a declaration of intent. Written/formal prose.
• SynonymミスCasualA loanword for a slip or mistake; the most common word in speech, for errors large and small, while 失態 stresses losing face.
• Synonym手違いてちがいNeutralA mix-up in procedures or arrangements; the emphasis is on the process going wrong, not on disgrace.
• Synonym間違えまちがえCasualA variant of 「間違い」 meaning a mistake; colloquial and less frequently used.
• SynonymしくじりCasualA colloquial noun for botching or bungling something; the stress is on the job going wrong, not on losing face.
• Synonym粗相そそうCasualA careless mistake, also a euphemism for wetting or soiling oneself; colloquial and softened in tone.
• Synonym仕損じしそんじNeutralA botched task or something not done well; fairly rare, and it does not stress the loss of face that 失態 does.
• Synonym仕損ないしそこないNeutralA job that did not go well, a slipup; rare, and it does not carry the nuance of disgracing yourself.
• SynonymポカCasualA careless, amateurish blunder made in a moment of inattention; colloquial, originally from go and shogi.
• Synonym誤ごNeutralAn error, mostly as a prefix in compounds like 「誤字」; seldom used on its own.
• Related不出来ふできNeutralPoor work or a badly done job; the emphasis is on the quality of the work or result, not on an embarrassing slip.
• Related不成功ふせいこうNeutralLack of success; centers on the outcome of an attempt and, unlike 失態, says nothing about losing face.
• Related過怠かたいWrittenNegligence or slackness; written/formal and rarely used, also the name of a medieval punishment.
• Related誤謬ごびゅうWrittenA fallacy or error; in logic, a flaw in an argument. Academic written prose.

Use 「失態」 for a blunder that costs you face or makes you look bad in public, as in 「失態を演じる」 or 「大失態」. Most alternatives name the mistake itself without that nuance: ordinary failure is 「失敗」, everyday mistakes 「間違い」 or 「ミス」, blameworthy lapses 「落ち度」, procedural mix-ups 「手違い」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 体面たいめんや体裁ていさいを損そこなうこと。
2. しくじり。失敗しっぱい。