黒ずむ|くろずむkurozumu[3]nakadaka (mid-high)
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- godan verb, intransitive verbto blacken; to darken
Conjugation
| Dictionary form | 黒ずむ(くろずむ) |
|---|---|
| Polite (masu) | 黒ずみます(くろずみます) |
| Negative (nai) | 黒ずまない(くろずまない) |
| polite (masen) | 黒ずみません(くろずみません) |
| classical zu / nu | 黒ずまず・黒ずまぬ(くろずまず・くろずまぬ) |
| Past (ta) | 黒ずんだ(くろずんだ) |
| polite (mashita) | 黒ずみました(くろずみました) |
| Past negative (nakatta) | 黒ずまなかった(くろずまなかった) |
| polite (masen deshita) | 黒ずみませんでした(くろずみませんでした) |
| Te form | 黒ずんで(くろずんで) |
| Potential | 黒ずめる(くろずめる) |
| Passive | 黒ずまれる(くろずまれる) |
| Causative | 黒ずませる(くろずませる) |
| Causative passive | 黒ずませられる・黒ずまされる(くろずませられる・くろずまされる) |
| Conditional (ba) | 黒ずめば(くろずめば) |
| tara | 黒ずんだら(くろずんだら) |
| Volitional | 黒ずもう(くろずもう) |
| polite (mashou) | 黒ずみましょう(くろずみましょう) |
| Imperative | 黒ずめ(くろずめ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym黒むくろむNeutralMeans to turn black, but is rarely used; 「黒ずむ」 is more common and often suggests taking on a dark, dirty-looking blackness.
- Synonym黒ばむくろばむWrittenA written word meaning to blacken slightly; extremely rare and rather old-fashioned in flavor.
- RelatedくすむNeutralDescribes a color turning dull and losing its brightness, as in 「肌がくすむ」; the point is lost luster rather than blackening.
- Antonym白くなるNeutralMeans to turn white, the direct opposite of the blackening expressed by 「黒ずむ」.
Use 「黒ずむ」 for something taking on a black, darkened look, as in 「毛穴の黒ずみ」 or 「銀が黒ずむ」. For a dull, lusterless color choose 「くすむ」, and for turning white 「白くなる」. 「黒む」 and 「黒ばむ」 are rare alternatives, the latter literary.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


