How to say "sanity" in Japanese

• 正気しょうきCommon
  no-adjectiveThe common word for sanity as a sound, ordinary state of mind; it also covers consciousness and soberness. Typical contexts include asking whether someone is in their right mind, or losing and regaining one's sanity.
  やっとメアリーは正気しょうきに戻もどった。↗

  At last, Mary recovered her senses.
• たわい
  nounA less common word, usually written in kana alone; its senses lean toward soundness of mind and prudence and discretion rather than plain sanity, so it is seldom the word you want for 'sanity'.

Choose 正気 for the common sense of sanity as a sound, conscious mind; 「たわい」, a less common word usually written in kana, covers soundness of mind with a nuance of prudence and is seldom the word you want.

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

• 正気しょうきsanity
• たわいsanity