変質|へんしつhenshitsu[0]heiban (flat)
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Definitions
- noun, suru verb, intransitive verbalteration (of character or essence); change in quality; transformation; deterioration; degeneration; transmutation
- nounperversion (esp. sexual)
Conjugation
| Dictionary form | 変質する（へんしつする） |
|---|---|
| Polite (masu) | 変質します（へんしつします） |
| Negative (nai) | 変質しない（へんしつしない） |
| polite (masen) | 変質しません（へんしつしません） |
| classical zu / nu | 変質せず・変質せぬ（へんしつせず・へんしつせぬ） |
| Past (ta) | 変質した（へんしつした） |
| polite (mashita) | 変質しました（へんしつしました） |
| Past negative (nakatta) | 変質しなかった（へんしつしなかった） |
| polite (masen deshita) | 変質しませんでした（へんしつしませんでした） |
| Te form | 変質して（へんしつして） |
| Potential | 変質できる（へんしつできる） |
| Passive | 変質される（へんしつされる） |
| Causative | 変質させる（へんしつさせる） |
| Causative passive | 変質させられる（へんしつさせられる） |
| Conditional (ba) | 変質すれば（へんしつすれば） |
| tara | 変質したら（へんしつしたら） |
| Volitional | 変質しよう（へんしつしよう） |
| polite (mashou) | 変質しましょう（へんしつしましょう） |
| Imperative | 変質しろ（へんしつしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym変容へんようNeutralTransformation of the overall look or aspect of something — cities, ideas, behavior (「都市の変容」). 「変質」 is about a change in quality or nature, often for the worse.
- Synonym変成へんせいNeutralFormed by a change of form or quality; mostly used in geology, as in 「変成岩」 (metamorphic rock).
- Related変じるへんじるWrittenMeans to change into something else; unlike 「変質」 it carries no suggestion of deterioration. Written style, and not often used.
- Related変調へんちょうNeutralSomething being off or abnormal in condition, as in 「体の変調」; the emphasis is on disorder, not on a change in quality.
- Related化するかするWrittenTo turn into something, as in 「廃墟と化する」. Written style; stresses the resulting state.
- Related化すかすWrittenSame meaning as 「化する」 but conjugated as a godan verb. Written style; likewise stresses the result of turning into something.
- Related変ずるへんずるWrittenSame meaning as 「変じる」 but with an even stronger literary flavor. Written style, little used.
- Antonym不変ふへんNeutralAntonym: never changing, forever the same. Opposed to 「変質」, which is about a change in nature or quality.
- Antonym恒常こうじょうNeutralAntonym: constancy — staying constant and unchanging throughout. Stands opposite to 「変質」.
Use 「変質」 for a change — usually a deterioration — in the quality or nature of something (「油が変質する」), or for a morbid personality. For a transformation in overall appearance use 「変容」; for something being off, 「変調」. 「変じる」「変ずる」「化する」「化す」 just mean to change into; 「変成」 is mostly geological; 「不変」 and 「恒常」 are antonyms.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
See also
