分裂|ぶんれつbunretsu[0]heiban (flat)
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
- noun, suru verb, intransitive verbsplit; division; break up
Conjugation
| Dictionary form | 分裂する(ぶんれつする) |
|---|---|
| Polite (masu) | 分裂します(ぶんれつします) |
| Negative (nai) | 分裂しない(ぶんれつしない) |
| polite (masen) | 分裂しません(ぶんれつしません) |
| classical zu / nu | 分裂せず・分裂せぬ(ぶんれつせず・ぶんれつせぬ) |
| Past (ta) | 分裂した(ぶんれつした) |
| polite (mashita) | 分裂しました(ぶんれつしました) |
| Past negative (nakatta) | 分裂しなかった(ぶんれつしなかった) |
| polite (masen deshita) | 分裂しませんでした(ぶんれつしませんでした) |
| Te form | 分裂して(ぶんれつして) |
| Potential | 分裂できる(ぶんれつできる) |
| Passive | 分裂される(ぶんれつされる) |
| Causative | 分裂させる(ぶんれつさせる) |
| Causative passive | 分裂させられる(ぶんれつさせられる) |
| Conditional (ba) | 分裂すれば(ぶんれつすれば) |
| tara | 分裂したら(ぶんれつしたら) |
| Volitional | 分裂しよう(ぶんれつしよう) |
| polite (mashou) | 分裂しましょう(ぶんれつしましょう) |
| Imperative | 分裂しろ(ぶんれつしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym分離ぶんりNeutralA noun for separation (「成分を分離する」); it stresses a part being detached from the whole, while 「分裂」 stresses a whole cracking into pieces inside.
- Synonym分割ぶんかつNeutralA noun for partitioning (「土地を分割する」); it stresses deliberate cutting into sections, whereas 「分裂」 is a whole splitting into pieces.
- Related分散ぶんさんNeutralA noun for dispersal (「票が分散する」); it stresses things scattering to many places rather than one whole breaking apart.
- Related別れるわかれるNeutralFor parting from people, pets, one's hometown and the like, or for lovers breaking up (「恋人と別れる」「故郷と別れる」).
- Related分かれるわかれるNeutralA native Japanese verb for something dividing into several parts (「意見が分かれる」「道が分かれる」).
- Related解離かいりWrittenA noun of formal written prose for dissociation (「分子の解離」), used mainly in chemistry and psychology.
- Antonym結合けつごうNeutralAn antonym of 「分裂」: things joining or being joined together into one.
- Antonym統一とういつNeutralAn antonym of 「分裂」: unifying separate things into a single whole.
- Antonym融合ゆうごうNeutralAn antonym of 「分裂」: two or more things fusing into one, the opposite of splitting apart.
Use 「分裂」 when one whole cracks into pieces — it works for organizations, cells and opinions (「党が分裂する」「細胞分裂」「世論が分裂する」). When something divides into several branches or directions, say 「分かれる」; to separate something out from a whole, 「分離」; to part from someone or somewhere, 「別れる」. The opposite is 「統一」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


