沈降|ちんこうchinkou[0]heiban (flat)
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- noun, suru verb, intransitive verbsedimentation (e.g. of red blood cells); precipitation; settling
- noun, suru verb, intransitive verbsubsidence (e.g. of land); sinking; submerging
Conjugation
| Dictionary form | 沈降する(ちんこうする) |
|---|---|
| Polite (masu) | 沈降します(ちんこうします) |
| Negative (nai) | 沈降しない(ちんこうしない) |
| polite (masen) | 沈降しません(ちんこうしません) |
| classical zu / nu | 沈降せず・沈降せぬ(ちんこうせず・ちんこうせぬ) |
| Past (ta) | 沈降した(ちんこうした) |
| polite (mashita) | 沈降しました(ちんこうしました) |
| Past negative (nakatta) | 沈降しなかった(ちんこうしなかった) |
| polite (masen deshita) | 沈降しませんでした(ちんこうしませんでした) |
| Te form | 沈降して(ちんこうして) |
| Potential | 沈降できる(ちんこうできる) |
| Passive | 沈降される(ちんこうされる) |
| Causative | 沈降させる(ちんこうさせる) |
| Causative passive | 沈降させられる(ちんこうさせられる) |
| Conditional (ba) | 沈降すれば(ちんこうすれば) |
| tara | 沈降したら(ちんこうしたら) |
| Volitional | 沈降しよう(ちんこうしよう) |
| polite (mashou) | 沈降しましょう(ちんこうしましょう) |
| Imperative | 沈降しろ(ちんこうしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym沈下ちんかNeutralGround subsidence, focusing on foundations and buildings sinking, as in 「地盤沈下」; more everyday than 「沈降」.
- Synonym沈殿ちんでんWrittenWritten register. Particles in a solution settling to the bottom and accumulating; the usual term in chemistry, not for land sinking.
- Related沈むしずむNeutralThe everyday verb for sinking, the most common one in daily use; also covers the sun setting and feeling depressed.
- Antonym浮上ふじょうNeutralRising to the surface; also rising in rank or standing. The opposite of the sinking expressed by 「沈降」.
- Antonym浮揚ふようWrittenWritten register: floating up or buoying something up, also revitalizing it (e.g. the economy); the opposite of sinking 「沈降」.
Use 「沈降」 for ground sinking or particles settling, mainly in geoscience and medicine (「赤血球沈降速度」). For precipitation in solution use 「沈殿」, for ground subsidence 「沈下」; 「沈む」 is the everyday verb; 「浮上」/「浮揚」 are opposites.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


