苦痛|くつうkutsuu[0]heiban (flat)

1. nounpain; agony; suffering; distress; torment
   苦痛くつうで彼かれの顔かおが歪ゆがんでいる。↗

   His face is distorted by pain.

• Synonym苦しみくるしみNeutralThe everyday word for suffering of body or mind. More colloquial than 「苦痛」, which is the written choice, as in 「苦痛を感じる」「苦痛に耐える」.
• Synonym痛みいたみNeutralCenters on concrete physical pain, though it can also mean heartache; 「苦痛」 covers suffering of both body and mind in a broader sense.
• Synonym苦悩くのうWrittenWritten/formal prose for mental anguish and inner struggle; 「苦痛」 applies to suffering of both body and mind.
• Synonym苦渋くじゅうWrittenWritten/formal prose for bitterness or reluctance, as in 「苦渋の決断」; 「苦痛」 leans toward pain itself.
• Synonym苦悶くもんWrittenWritten/formal prose for writhing in agony, as in 「苦悶の表情」; 「苦痛」 is the more general-purpose word.
• Related悩みなやみNeutralWorries and things weighing on the mind; 「苦痛」 focuses on suffering of body and mind.
• Related辛酸しんさんWrittenWritten/formal prose for hardships endured over time, as in 「辛酸をなめる」.
• Related心労しんろうWrittenWritten/formal prose for mental strain and worry that wears you down; 「苦痛」 leans toward pain itself.
• Related四苦八苦しくはっくNeutralA four-character idiom for being hard pressed and struggling desperately, as in 「四苦八苦する」.
• Related苦患くげんWrittenA Buddhist term for the torments of hell; not used in everyday speech.
• Related痛苦つうくWrittenWritten/formal prose and rare; refers to suffering of body and mind. In daily life 「苦痛」 is the usual word.
• Related苦くNeutralMostly seen in set phrases such as 「苦にする」「苦もなく」; 「苦痛」 is the more concrete word for pain.
• Related苦しさくるしさNeutralThe state of suffering or its degree, as in 「息苦しさ」; leans toward the subjective feeling.
• Related苦衷くちゅうWrittenWritten/formal prose for hardships one cannot easily voice, as in 「苦衷を察する」.
• Related艱苦かんくWrittenWritten/formal prose for hardship and privation; in daily life 「苦労」 is the usual word.
• Related疾苦しっくWrittenWritten/formal prose for suffering from illness or distress in general; not used in everyday speech.
• RelatedつらさNeutralHow hard or heartbreaking something feels, and to what degree; 「苦痛」 is the more written word.
• Antonym快楽かいらくWrittenAntonym in feeling: pleasure and enjoyment, as opposed to 「苦痛」.
• Antonym安楽あんらくWrittenAntonym in feeling: comfort and ease, as opposed to 「苦痛」.

For suffering of body and mind in written or formal prose, use 「苦痛」; in speech, 「苦しみ」 is the everyday word, and 「痛み」 for concrete pain. For mental anguish, choose 「苦悩」 or 「悩み」; for a painful, reluctant decision, 「苦渋」. The antonyms are 「快楽」 and 「安楽」.

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

1. 体からだや心こころに感かんじる苦くるしみや痛いたみ。
2. 体からだや心こころに感かんじる苦くるしみや痛いたみを嫌いやがるさま。
3. 体からだや心こころに感かんじる苦くるしみや痛いたみに苛さいなまれる。