遺体|いたいitai[0]heiban (flat)

1. noun(dead) body; corpse; remains
   その遺体いたいの身元みもとは頬ほおのほくろで確認かくにんされた。↗

   The dead body was identified by a mole on the cheek.

• Synonym死体したいNeutralThe plain, objective term: covers animals as well as people and can sound cold. 「遺体」 refers only to humans and carries respect for the deceased.
• Synonym死骸しがいNeutralUsed for human and animal corpses alike, often for insects, birds and other animals. 「遺体」 is for humans only and is respectful.
• Synonym亡骸なきがらWrittenAn elegant word tinged with mourning, found in literature and memorial contexts. 「遺体」 is more common in news reports and everyday speech.
• Synonym屍しかばねWrittenA literary word seen in novels and poetry, with a heavy tone. In daily speech and news reports people say 「遺体」 or 「死体」.
• Synonym躯むくろWrittenA strongly literary word for a corpse or the bodily shell, found mainly in modern literature. 「遺体」 is the everyday respectful term.
• Synonym遺骸いがいWrittenMeans the same as 「遺体」 and tends to appear in solemn contexts, but is used far less often.
• Synonym死屍ししWrittenA rare written word, best known from the idiom 「死屍累々」, describing corpses piled up. In everyday speech say 「遺体」.
• Related死人しにんNeutralMeans a dead person, not just the body, and is blunt with no note of respect. 「遺体」 is the respectful way to speak of the deceased's body.
• Antonym生体せいたいWrittenThe opposite in life and death: a living body or organism, mostly in medicine and biology, as in 「生体反応」.

Use 「遺体」 for a deceased person's body with respect; it is the usual word in news reports. 「死体」 is the neutral, colder term and also covers animals, while 「死骸」 is typical for insects and birds. For solemn or literary writing choose 「亡骸」, 「遺骸」, 「屍」, 「死屍」 or 「躯」. 「死人」 means the dead person themselves, bluntly. 「生体」 is the antonym, a living body.

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

1. 死しんだ人間にんげんの体からだ。