衰弱|すいじゃくsuijaku[0]heiban (flat)
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Definitions
- suru verb, intransitive verb, no-adjectiveweakness; debility; breakdown; prostration
Conjugation
| Dictionary form | 衰弱する（すいじゃくする） |
|---|---|
| Polite (masu) | 衰弱します（すいじゃくします） |
| Negative (nai) | 衰弱しない（すいじゃくしない） |
| polite (masen) | 衰弱しません（すいじゃくしません） |
| classical zu / nu | 衰弱せず・衰弱せぬ（すいじゃくせず・すいじゃくせぬ） |
| Past (ta) | 衰弱した（すいじゃくした） |
| polite (mashita) | 衰弱しました（すいじゃくしました） |
| Past negative (nakatta) | 衰弱しなかった（すいじゃくしなかった） |
| polite (masen deshita) | 衰弱しませんでした（すいじゃくしませんでした） |
| Te form | 衰弱して（すいじゃくして） |
| Potential | 衰弱できる（すいじゃくできる） |
| Passive | 衰弱される（すいじゃくされる） |
| Causative | 衰弱させる（すいじゃくさせる） |
| Causative passive | 衰弱させられる（すいじゃくさせられる） |
| Conditional (ba) | 衰弱すれば（すいじゃくすれば） |
| tara | 衰弱したら（すいじゃくしたら） |
| Volitional | 衰弱しよう（すいじゃくしよう） |
| polite (mashou) | 衰弱しましょう（すいじゃくしましょう） |
| Imperative | 衰弱しろ（すいじゃくしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym虚脱きょだつNeutralA drained, can't-do-anything state once strength and spirit give out; also a medical term for collapse. 「衰弱」 stresses gradual weakening.
- Related低下ていかNeutralA fall in ability, level or quality — objective and neutral, and not tied to the body the way 「衰弱」 is.
- Related悪化あっかNeutralWorsening of an illness or a situation. It stresses things turning bad, which does not necessarily mean growing weaker.
- Related劣化れっかNeutralDeterioration in the quality or performance of things; colloquially also for people losing their looks with age. Centres on objects, not health.
- Related疲労困憊ひろうこんぱいNeutralA four-character idiom for being utterly worn out. It centres on fatigue from exertion and is not used for long-term weakening.
- Related落ち込みおちこみNeutralA drop in figures or in mood — market downturns, low spirits. Not used for the body growing weaker.
- Related衰勢すいせいWrittenWritten/formal prose for waning momentum. It concerns the decline of power or influence, not bodily weakness.
- Related増悪ぞうあくNeutralA medical term for a disease or symptom getting worse. It focuses on symptoms intensifying rather than overall weakening.
- Antonym強壮きょうそうNeutralThe opposite of 「衰弱」: physically robust and sturdy.
- Antonym健康けんこうNeutralThe opposite of 「衰弱」: being sound in both body and mind.
Use 「衰弱」 for strength or function gradually fading, as in 「神経衰弱」 or 「衰弱死」. For collapse from exhaustion pick 「虚脱」, for being worn out 「疲労困憊」, for quality degrading 「劣化」. 「低下」 and 「悪化」 cover falling levels and worsening states, 「増悪」 medical flare-ups, 「落ち込み」 dips in figures or mood, 「衰勢」 waning influence in formal prose. Antonyms: 「強壮」, 「健康」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
