減速|げんそくgensoku[0]heiban (flat)

Common
Definitions
  1. suru verb, transitive verb, intransitive verb, no-adjectivedeceleration
    日本にっぽんの海外かいがい援助えんじょは、1つには国内こくないの経済けいざいの減速げんそくによって減へりつつある。↗
    Japan's foreign aid is decreasing in part because of an economic slowdown at home.
Conjugation
Dictionary form減速する(げんそくする)
Polite (masu)減速します(げんそくします)
Negative (nai)減速しない(げんそくしない)
polite (masen)減速しません(げんそくしません)
classical zu / nu減速せず・減速せぬ(げんそくせず・げんそくせぬ)
Past (ta)減速した(げんそくした)
polite (mashita)減速しました(げんそくしました)
Past negative (nakatta)減速しなかった(げんそくしなかった)
polite (masen deshita)減速しませんでした(げんそくしませんでした)
Te form減速して(げんそくして)
Potential減速できる(げんそくできる)
Passive減速される(げんそくされる)
Causative減速させる(げんそくさせる)
Causative passive減速させられる(げんそくさせられる)
Conditional (ba)減速すれば(げんそくすれば)
tara減速したら(げんそくしたら)
Volitional減速しよう(げんそくしよう)
polite (mashou)減速しましょう(げんそくしましょう)
Imperative減速しろ(げんそくしろ)

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

Synonyms & antonyms
  • SynonymスローダウンNeutralA loanword for slowing down, also used figuratively of the economy or one's pace slowing; 「減速」 is the more formal, technical term.
  • SynonymスピードダウンNeutralWasei-eigo for lowering speed, used mostly of vehicles and sports; 「減速」 is the more formal, written term.
  • Related徐行じょこうNeutralSlow driving of a vehicle, as on road signs reading 「徐行」; 「減速」 speaks only of reducing speed itself.
  • Antonym加速かそくNeutralThe opposite of 「減速」 in speed change: to speed up or accelerate, as in 「加速度」.

Use 「減速」 to say speed is reduced, even figuratively as in 「景気の減速」. 「スローダウン」 is the colloquial word for slowing down, 「スピードダウン」 fits vehicles and sports, and 「徐行」 is the sign telling drivers to go slowly. 「加速」 is the antonym.

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

Japanese definitions
  1. 速はやさが小ちいさくなること。遅おそくなること。
Kanji in this word
See also

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