勃起|ぼっきbokki[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verb, physiologyerection (of the penis); becoming erect; stiffening
  2. noun, suru verb, intransitive verbwelling up (of an emotion)
Conjugation
Dictionary form勃起する(ぼっきする)
Polite (masu)勃起します(ぼっきします)
Negative (nai)勃起しない(ぼっきしない)
polite (masen)勃起しません(ぼっきしません)
classical zu / nu勃起せず・勃起せぬ(ぼっきせず・ぼっきせぬ)
Past (ta)勃起した(ぼっきした)
polite (mashita)勃起しました(ぼっきしました)
Past negative (nakatta)勃起しなかった(ぼっきしなかった)
polite (masen deshita)勃起しませんでした(ぼっきしませんでした)
Te form勃起して(ぼっきして)
Potential勃起できる(ぼっきできる)
Passive勃起される(ぼっきされる)
Causative勃起させる(ぼっきさせる)
Causative passive勃起させられる(ぼっきさせられる)
Conditional (ba)勃起すれば(ぼっきすれば)
tara勃起したら(ぼっきしたら)
Volitional勃起しよう(ぼっきしよう)
polite (mashou)勃起しましょう(ぼっきしましょう)
Imperative勃起しろ(ぼっきしろ)

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

Synonyms & antonyms
  • Related硬化こうかWrittenWritten/formal prose. Covers hardening of substances or of attitudes and stances; it does not specifically denote a physiological erection.
  • Related硬直こうちょくWrittenWritten/formal prose. Describes the body going stiff or rigid; in medical usage it can also refer to an erection.
  • Antonym収縮しゅうしゅくNeutralNeutral term for contraction or shrinking — becoming smaller or shorter; the opposite of 「勃起」, which is swelling and standing erect.
  • Antonym萎縮いしゅくWrittenWritten/formal prose. Withering, shrivelling or atrophy — shrinking and losing vigor; the opposite of 「勃起」 standing erect.

Use 「勃起」 for an erection (medical) or an emotion welling up. For hardening of substances or attitudes choose 「硬化」; for a body going stiff, 「硬直」 (also erection in medical use). The opposites are 「収縮」, neutral contraction, and 「萎縮」, written atrophy.

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

Japanese definitions
  1. 力強ちからづよくむくむくと起おこり立たつこと。
  2. 陰茎いんけいや陰核いんかくが海綿体かいめんたいの充血じゅうけつにより膨張ぼうちょうし、硬かたくなること。
Kanji in this word
English equivalents

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