How to say "boredom" in Japanese

• 飽きあきCommon
  nounBoredom as tiring of something and losing interest in it — having had enough of an activity or thing. The closest of these words to plain 'boredom'.
  その計画けいかくには大おおいに飽き足あきたらぬところがある。↗

  The plan is far from satisfactory.
• 気づかれきづかれCommon
  noun, suru verb, intransitive verbReally mental fatigue — exhaustion from worrying or fretting over things — so 'boredom' is only a marginal sense here, and it is seldom the word you want for plain boredom.
• 倦怠けんたいCommon
  noun, suru verb, intransitive verbBoredom as listless weariness: fatigue or languor of body or mind, the drained feeling that builds through prolonged effort or routine rather than a simple loss of interest.
  オルダス・ハックスリーが人間にんげんのもっとも危険きけんな条件じょうけんだと考かんがえたのは倦怠けんたいであった。↗

  It was boredom that Aldous Huxley considered one of the most dangerous human conditions.
• 屈託くったくCommon
  noun, suru verb, intransitive verbMatches 'ennui': a brooding, settled boredom — listless dissatisfaction rather than the ordinary boredom of having nothing to do.

Choose 「飽き」 for boredom as tiring of something, 倦怠 for listless weariness or fatigue, 屈託 for brooding ennui, and avoid 「気づかれ」 for plain boredom, since it is really mental fatigue.

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

• 飽きあきweariness
• 気づかれきづかれmental fatigue
• 倦怠けんたいweariness
• 無聊ぶりょうboredom
• 無為無聊むいぶりょうboredom
• 徒然つれづれtedium
• アンニュイennui
• 屈託くったくennui