不死身|ふじみfujimi[0]heiban (flat)

1. na-adjective, nouninvulnerability; immortality; insensibility to pain
   アキレスはかかとを除のぞいては不死身ふじみだった。↗

   Apart from his heel, Achilles was invulnerable.

• Synonym不滅ふめつNeutralDescribes things that never perish or fade — often achievements or the spirit, as in 「不滅の記録」; it does not refer to a body that cannot be harmed.
• Synonym不死ふしNeutralMeans never dying, as in 「不老不死」, but without the sense of agelessness; it stresses unending life rather than the ability to withstand blows.
• Antonym脆弱ぜいじゃくNeutralMeans frail and easily broken or crushed, as in 「脆弱な体制」; the opposite of indestructible.
• Antonym死にやすいNeutralMeans liable to die easily; not a fixed expression, it is the opposite of 「不死身」, which no amount of beating can kill.

Use 「不死身」 for someone who takes any wound or blow and keeps fighting, as in 「不死身の男」. For unaging eternal life say 「不老不死」; for the immortality of deeds or spirit say 「不滅」.

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

1. どんな病気びょうき・傷きず・打撃だげきにも耐たえる強つよい体からだを持もっていること。また、そのさま。
2. どんな困難こんなんにも挫くじけないこと。また、そのさま。