疾患|しっかんshikkan[0]heiban (flat)

1. noun, medicinedisease; illness; disorder; condition; ailment

• Synonym病気びょうきNeutralThe everyday, all-purpose word for being ill; 「疾患」 is a medical term for classified disorders, as in 「心疾患」 and 「精神疾患」.
• Synonym疾病しっぺいWrittenWritten word for disease, common in official documents and medical writing, e.g. 「疾病分類」; 「疾患」 leans more toward clinical medicine.
• Synonym病やまいWrittenArchaic word (read いたずき) for pain, hardship or illness, rarely used today; 「疾患」 is the modern medical term.
• Synonym病患びょうかんWrittenRare, written word for sickness; in daily speech say 「病気」, and in medical contexts 「疾患」.
• Related病びょうWrittenArchaic word (read いたずき) for pain, hardship or illness, rarely used today; 「疾患」 is the modern medical term.
• Antonym健康けんこうNeutralThe antonym in the pairing of illness and health: being in good physical and mental condition, as in 「健康診断」.

Use 「疾患」 for medical disorders, as in 「呼吸器疾患」 and 「精神疾患」. For everyday illness say 「病気」; official and medical prose often uses 「疾病」. The antonym is 「健康」.

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

1. 身体しんたいや身体しんたい機能きのう、精神せいしん機能きのうの故障こしょうや不具合ふぐあいを症状しょうじょうを元もとに分類ぶんるいしたもの。病気びょうきの医学的いがくてきな表現ひょうげん。疾病しっぺい。