倒壊・倒潰|とうかいtoukai[0]heiban (flat)
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Which spelling to use
倒壊倒壊 is the most common written form and the one beginners should use when writing.
倒潰倒潰 is a rarely used kanji variant; beginners should normally write 倒壊 instead.
Definitions
- noun, suru verb, intransitive verbdestruction; collapse; crumbling
Conjugation
| Dictionary form | 倒壊する（とうかいする） |
|---|---|
| Polite (masu) | 倒壊します（とうかいします） |
| Negative (nai) | 倒壊しない（とうかいしない） |
| polite (masen) | 倒壊しません（とうかいしません） |
| classical zu / nu | 倒壊せず・倒壊せぬ（とうかいせず・とうかいせぬ） |
| Past (ta) | 倒壊した（とうかいした） |
| polite (mashita) | 倒壊しました（とうかいしました） |
| Past negative (nakatta) | 倒壊しなかった（とうかいしなかった） |
| polite (masen deshita) | 倒壊しませんでした（とうかいしませんでした） |
| Te form | 倒壊して（とうかいして） |
| Potential | 倒壊できる（とうかいできる） |
| Passive | 倒壊される（とうかいされる） |
| Causative | 倒壊させる（とうかいさせる） |
| Causative passive | 倒壊させられる（とうかいさせられる） |
| Conditional (ba) | 倒壊すれば（とうかいすれば） |
| tara | 倒壊したら（とうかいしたら） |
| Volitional | 倒壊しよう（とうかいしよう） |
| polite (mashou) | 倒壊しましょう（とうかいしましょう） |
| Imperative | 倒壊しろ（とうかいしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym崩壊ほうかいNeutralCovers building collapses but also figurative breakdowns of organizations and systems, as in 「家庭崩壊」; 「倒壊」 is for structures like buildings or utility poles falling.
- Related崩れるくずれるNeutralA verb, often colloquial, with far wider use than 「倒壊」: collapsing, but also shapes, posture, weather, or relationships going bad.
- Related崩落ほうらくNeutralFor cliffs, tunnels, or structures caving in, and for market crashes; stresses falling downward, while 「倒壊」 stresses a building toppling.
- Related崩れ落ちるくずれおちるNeutralA verb for piled-up things crumbling and falling down; highlights the process of tumbling down, and is not limited to buildings.
- Related瓦解がかいWrittenWritten/formal prose: an organization or system falling apart as its parts give way, now mostly figurative; 「倒壊」 is for structures physically falling.
- Related潰れるつぶれるNeutralA common colloquial verb: being crushed or squashed, going bankrupt as in 「会社が潰れる」; its many senses include a house being crushed flat.
- Related決壊けっかいNeutralFor dams, embankments, or reservoirs bursting under floodwater, also figuratively for defenses or emotions breaking; 「倒壊」 is about structures falling.
- Related全壊ぜんかいFormalFormal disaster-assessment term for a house destroyed totally or nearly so, its basic functions lost; the building need not actually have fallen.
- Related破壊はかいNeutralDestruction or wrecking, by human hands or natural forces, usually as a transitive verb; not specifically about buildings falling down.
- Related潰えるついえるWrittenWritten/formal prose: can describe buildings collapsing, but more often plans or dreams falling through; stresses hopes being dashed.
- Antonym建設けんせつNeutralAntonym: constructing buildings or facilities; the opposite of 「倒壊」, where buildings collapse.
- Antonym建築けんちくNeutralAntonym: the act of building structures, also the field of architecture; the opposite of 「倒壊」, buildings falling down.
Use 「倒壊」 for buildings and structures falling and being crushed, as in 「家屋が倒壊する」. For figurative breakdowns use 「崩壊」, for dams bursting 「決壊」, for total destruction 「全壊」; colloquially 「崩れる」. The antonym is 「建設」.
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
