収縮|しゅうしゅくshuushuku[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbcontraction; shrinking; shrinkage; constriction; deflation
    瞳ひとみは日ひのあたる所ところでは収縮しゅうしゅくする。↗
    The pupils of the eyes contract in sunlight.
Conjugation
Dictionary form収縮する(しゅうしゅくする)
Polite (masu)収縮します(しゅうしゅくします)
Negative (nai)収縮しない(しゅうしゅくしない)
polite (masen)収縮しません(しゅうしゅくしません)
classical zu / nu収縮せず・収縮せぬ(しゅうしゅくせず・しゅうしゅくせぬ)
Past (ta)収縮した(しゅうしゅくした)
polite (mashita)収縮しました(しゅうしゅくしました)
Past negative (nakatta)収縮しなかった(しゅうしゅくしなかった)
polite (masen deshita)収縮しませんでした(しゅうしゅくしませんでした)
Te form収縮して(しゅうしゅくして)
Potential収縮できる(しゅうしゅくできる)
Passive収縮される(しゅうしゅくされる)
Causative収縮させる(しゅうしゅくさせる)
Causative passive収縮させられる(しゅうしゅくさせられる)
Conditional (ba)収縮すれば(しゅうしゅくすれば)
tara収縮したら(しゅうしゅくしたら)
Volitional収縮しよう(しゅうしゅくしよう)
polite (mashou)収縮しましょう(しゅうしゅくしましょう)
Imperative収縮しろ(しゅうしゅくしろ)

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

Synonyms & antonyms
  • Synonym縮むちぢむNeutralIntransitive verb for things shrinking or getting smaller, e.g. 「セーターが縮む」. Colloquial and everyday; 「収縮」 sounds more technical, physical or medical.
  • Synonym縮まるちぢまるNeutralIntransitive verb for gaps, distances or intervals narrowing, e.g. 「差が縮まる」. Focuses on the space or difference between things getting smaller.
  • Synonym収斂しゅうれんWrittenWord for contracting or drawing in, as in 「収斂剤」 (an astringent); also gathering opinions together. Leans written — found in formal prose.
  • Related凝縮ぎょうしゅくNeutralCondensation or concentration — of ideas, emotions or essence into one compact form; also vapour turning to liquid. Emphasizes the essence gathering in one place.
  • Related圧縮あっしゅくNeutralCompressing by applying pressure; also data compression or trimming content. 「収縮」 is something shrinking on its own, without the sense of outside force.
  • RelatedコントラクションNeutralLoanword for contraction, including shortened forms in English grammar. Strongly technical, used in specialist contexts rather than everyday speech.
  • Antonym膨張ぼうちょうNeutralAntonym: expansion or swelling — volume, area or length increasing. The direct opposite of 「収縮」 as contraction.
  • Antonym拡大かくだいNeutralAntonym: making or becoming larger in scale, scope or size. The opposite of shrinking.
  • Antonym伸展しんてんNeutralAntonym: stretching or extending influence and scale. The opposite of contracting.

Use 「収縮」 for contraction of muscles, blood vessels or the economy, as in 「筋肉の収縮」. For everyday shrinking like clothes, say 「縮む」; for gaps or differences narrowing, 「縮まる」. 「圧縮」 adds pressure, 「凝縮」 concentrates, and the antonym is 「膨張」.

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

Japanese definitions
  1. ちぢむこと。
  2. 物ものの体積たいせきや面積めんせきや長ながさが減へること。
  3. 規模きぼや数かずや量りょうが減へること。
Kanji in this word
English equivalents
See also

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