健康|けんこうkenkou[0]heiban (flat)

1. nounhealth
   煙草たばこをすうことは健康けんこうに悪わるい。↗

   Smoking is bad for the health.
2. na-adjectivehealthy; sound; fit; wholesome

• Synonym健全けんぜんWrittenWritten/formal prose. Means sound in body and mind, and also describes things working properly, as in 「健全な経営」; its range is broader than 「健康」.
• Synonym健やかすこやかNeutralNeutral. Describes growing up healthy in body and mind, most often of children, as in 「健やかに育つ」, with a gentle, well-wishing tone.
• Synonym元気げんきCasualColloquial everyday word for being well and full of energy, as in 「お元気ですか」; it stresses vitality, while 「健康」 points to the physical condition itself.
• Synonym丈夫じょうぶCasualColloquial. Describes a sturdy body that rarely falls ill, as in 「体が丈夫だ」, and also durable objects; 「健康」 refers to being in good health at present.
• Synonym健康的けんこうてきNeutralNeutral. Means healthful or looking healthy, as in 「健康的な生活」; 「健康」 itself works as both a noun and a na-adjective.
• SynonymヘルシーCasualColloquial loanword, mostly for food that is low in calories and good for you, as in 「ヘルシーな料理」; it usually applies to food.
• SynonymヘルスNeutralNeutral loanword, mostly in compounds like 「ヘルスケア」; on its own it often refers to an adult entertainment establishment, so use it with care.
• Synonym壮健そうけんWrittenWritten/formal prose for robust, sturdy health, often used in letters wishing an elder well. In everyday speech say 「元気」 or 「健康」.
• Synonym健勝けんしょうFormalFormal. Means good health, used chiefly in greetings in letters and speeches, as in 「ご健勝をお祈りします」, though it can also serve as a plain description.
• Related達者たっしゃNeutralNeutral. Means hale and hearty, typically of elderly people, as in 「お達者で」; it can also mean skilled at something, a sense 「健康」 lacks.
• Related好調こうちょうNeutralNeutral. Means being in good form or going well, as in 「売れ行き好調」; it is not limited to the body and often describes business results or competitive form.
• Related剛健ごうけんWrittenWritten/formal prose for rugged vigor and strength, seen mostly in 「質実剛健」, where it describes character or style rather than health itself.
• Related勇健ゆうけんWrittenA rare written/formal word for sound health, used mainly in greetings in letters. In daily speech say 「健康」 or 「元気」.
• Related健常けんじょうWrittenWritten/formal prose. Means able-bodied and sound in mind and body, as in 「健常者」; used in contrast with disability, not for general health.
• Antonym病気びょうきNeutralNeutral. Means illness or disease and stands in direct opposition to 「健康」.
• Antonym不健康ふけんこうNeutralNeutral. Means being in poor health or harmful to health, as in 「不健康な食生活」; it directly negates 「健康」.

Use 「健康」 for good physical condition, as in 「健康な体」. In casual speech, 「元気」 stresses energy and 「丈夫」 a sturdy constitution. Say 「健やか」 of children growing up well, 「ご健勝」 in letter greetings, and 「ヘルシー」 of food. 「健全」 is broader, 「達者」 suits the elderly, 「好調」 good form, 「健常」 able-bodied; 「病気」 and 「不健康」 are opposites.

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

1. 身体しんたいや精神せいしんが、良好りょうこうな状態じょうたいであること。