不朽|ふきゅうfukyuu[0]heiban (flat)

1. no-adjectiveeverlasting; immortal; eternal; enduring; undying; imperishable
   この数年間すうねんかんに彼かれは不朽ふきゅうの名詩めいしを書かいた。↗

   During these years he wrote immortal poems.

• Synonym不滅ふめつNeutralNeutral. Focuses on never perishing or disappearing, as in 「不滅の記録」; more colloquial than 「不朽」.
• Synonym千古不磨せんこふまFormalFormal four-character phrase stressing that something remains intact for a thousand years; more exaggerated and solemn than 「不朽」.
• Synonym永存えいそんWrittenWritten/formal prose but rare; stresses that something continues to exist forever.
• Synonym不磨ふまFormalFormal and rare; stresses that something never wears away or fades.
• Related永続えいぞくWrittenWritten/formal prose. Says a state simply goes on for a long time, as in 「永続的」; unlike 「不朽」 it does not stress that value survives.
• Related永久性えいきゅうせいWrittenWritten/formal prose. An abstract noun for the property of continuing forever.
• Related永久不変えいきゅうふへんFormalFormal four-character phrase emphasizing that something never changes, staying the same forever.
• Related永続性えいぞくせいWrittenWritten/formal prose. An abstract noun for the property of being able to last a long time.
• AntonymはかないNeutralNeutral. Fleeting and transient, gone in an instant; the opposite of 「不朽」, which is handed down to posterity.
• Antonym一時的いちじてきNeutralNeutral. Temporary, concerning only a short period; the opposite of the eternal 「不朽」.

Use 「不朽」 for value that never fades and is passed down to posterity, as in 「不朽の名作」「不朽の名声」. Say 「不滅」 for never disappearing and 「永続」 for a state simply continuing. The -性 nouns are abstract written terms; 「千古不磨」 and the like are formal four-character phrases. Opposites: 「儚い」, 「一時的」.

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

1. 後世こうせいまで価値かちを失うしなわずに残のこること。