びくびくbikubiku

Common
Definitions
  1. adverb (with と), suru verb, no-adjectivebeing afraid of; being fearful; being timid; being nervous
    彼かれはびくびくしている。↗
    He is afraid of his own shadow.
  2. adverb (with と), suru verb, no-adjectivetrembling; shivering
Conjugation
Dictionary formびくびくする
Polite (masu)びくびくします
Negative (nai)びくびくしない
polite (masen)びくびくしません
classical zu / nuびくびくせず・びくびくせぬ
Past (ta)びくびくした
polite (mashita)びくびくしました
Past negative (nakatta)びくびくしなかった
polite (masen deshita)びくびくしませんでした
Te formびくびくして
Potentialびくびくできる
Passiveびくびくされる
Causativeびくびくさせる
Causative passiveびくびくさせられる
Conditional (ba)びくびくすれば
taraびくびくしたら
Volitionalびくびくしよう
polite (mashou)びくびくしましょう
Imperativeびくびくしろ

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

Synonyms & antonyms
  • Antonym大胆だいたんNeutralBold and daring, acting without fear — the direct opposite of the timid, trembling 「ビクビク」.
  • Antonym堂々どうどうNeutralDignified and unflinching, facing things openly and with confidence — the opposite of the fearful 「ビクビク」.
  • Antonym落ち着くおちつくNeutralTo calm down and regain composure — the opposite of the anxious, on-edge 「ビクビク」.

Use 「ビクビク」 for being fearful and on edge, as in 「ビクビクする」. Its opposites are 「大胆」 (bold and daring), 「堂々」 (confident and unflinching) and 「落ち着く」 (calm and composed).

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

Japanese definitions
  1. 恐怖きょうふや不安ふあんで落ち着おちつかずにいるさま。
  2. 体からだの一部いちぶが小刻こきざみに動うごくさま。

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