分解|ぶんかいbunkai[0]heiban (flat)

JLPT N2approx.Common
Definitions
  1. noun, suru verb, transitive verb, intransitive verbdisassembly; dismantling; disaggregating; taking apart; breaking up; analysis; parsing
    時計とけいを分解ぶんかいするのは組み立くみたてるより簡単かんたんだ。↗
    Taking a watch apart is easier than putting it together.
  2. noun, suru verb, transitive verb, intransitive verb, chemistrydecomposition; resolution; disintegration; degradation
    水みずは酸素さんそと水素すいそに分解ぶんかいできる。↗
    Water can be decomposed into oxygen and hydrogen.
  3. noun, suru verb, transitive verb, mathfactorization
Conjugation
Dictionary form分解する(ぶんかいする)
Polite (masu)分解します(ぶんかいします)
Negative (nai)分解しない(ぶんかいしない)
polite (masen)分解しません(ぶんかいしません)
classical zu / nu分解せず・分解せぬ(ぶんかいせず・ぶんかいせぬ)
Past (ta)分解した(ぶんかいした)
polite (mashita)分解しました(ぶんかいしました)
Past negative (nakatta)分解しなかった(ぶんかいしなかった)
polite (masen deshita)分解しませんでした(ぶんかいしませんでした)
Te form分解して(ぶんかいして)
Potential分解できる(ぶんかいできる)
Passive分解される(ぶんかいされる)
Causative分解させる(ぶんかいさせる)
Causative passive分解させられる(ぶんかいさせられる)
Conditional (ba)分解すれば(ぶんかいすれば)
tara分解したら(ぶんかいしたら)
Volitional分解しよう(ぶんかいしよう)
polite (mashou)分解しましょう(ぶんかいしましょう)
Imperative分解しろ(ぶんかいしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym解体かいたいNeutralCovers demolishing buildings, dismantling vehicles or machines, and dissolving organizations (「ビルの解体」); 「分解」 stresses breaking a whole into its parts.
  • Related解析かいせきNeutralUsed for analyzing or parsing data (「データ解析」); mostly in science and engineering fields.
  • Related分析ぶんせきNeutralMeans analyzing something (「原因を分析する」); the point is to clarify its composition and properties.
  • Antonym結合けつごうNeutralJoining or binding things together (「化学結合」); the opposite of 「分解」 taking things apart.
  • Antonym合成ごうせいNeutralCombining several substances into one (「光合成」); the opposite of 「分解」.
  • Antonym統合とうごうNeutralIntegrating several parts into a single whole (「経営統合」); the opposite of 「分解」 splitting apart.

Use 「分解」 for taking a machine apart into pieces or for chemical decomposition (「時計を分解する」). For demolishing buildings or dissolving organizations pick 「解体」, and for clarifying composition 「分析」. The opposites are 「合成」 and 「結合」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 一ひとつの塊かたまりを部分ぶぶんに分わけること。
  2. 化合物かごうぶつが化学かがく変化へんかにより複数ふくすうの物質ぶっしつに分わかれること。
Kanji in this word
English equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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