独身|どくしんdokushin[0]heiban (flat)

1. no-adjectiveunmarried; single
   彼かれは一生いっしょう独身どくしんで過すごした。↗

   He remained single all his life.

• Synonym独り者ひとりものNeutralRefers to a single person, stressing being on one's own, with an everyday, life flavor; 「独身」 is the unmarried state itself.
• Synonym独身者どくしんしゃWrittenRefers to an unmarried person; written/formal prose, used in statistics and documents. 「独身」 is the state itself.
• Synonym独り身ひとりみNeutralRefers to being single and alone, also living alone or away from one's family; carries a lonelier feel than 「独身」.
• Antonym既婚きこんNeutralMarried; the opposite of 「独身」, which refers to being unmarried.

Use 「独身」 for the state of being unmarried or single. For a single person, choose 「独り者」 (everyday) or 「独身者」 (formal writing, statistics). 「独り身」 suggests living alone with a lonely nuance. 「既婚」 means married, the opposite of 「独身」.

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

1. 体からだ一ひとつであること。一人ひとり。
2. 婚姻こんいん可能かのうで配偶者はいぐうしゃがいないこと。