平然|へいぜんheizen[0]heiban (flat)

1. taru-adjective, adverb (with と)calm; composed; cool; quiet
   その政治家せいじかは平然へいぜんと賄賂わいろを受け取うけとり、全すべての契約けいやくの５％が濡れ手ぬれてに粟あわで彼かれの懐ふところに入はいった。↗

   The politician had sticky fingers, and 5% of every contract ended in his pocket.

• Related鈍感どんかんNeutralRefers to being dull or insensitive, with poor perception or feeling; 「平然」 is staying calm and unbothered when something happens.
• Antonym動揺どうようNeutralAntonym: being shaken and unsettled, mental unrest or agitation; the opposite of 「平然」's composure.
• Antonym慌てるあわてるNeutralAntonym: a verb meaning to panic or get flustered; colloquial, the opposite of the calm 「平然」.
• Antonym狼狽ろうばいWrittenAntonym: panic or consternation at an unexpected event; a written, formal word, opposite of the composed 「平然」.

Use 「平然」 for staying calm and unbothered as if nothing happened, often implying you don't care, as in 「平然と嘘をつく」. For being insensitive or thick-skinned, use 「鈍感」. Antonyms: 「動揺」, 「狼狽」, 「慌てる」.

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

1. 落ち着おちついているさま。平気へいきであるさま。