飽くなき

• Reading: あくなき
• Romaji: akunaki
• Kanji breakdown: 飽 (aku) — satiation, boredom
• Pronunciation: /a.kɯ.na.ki/

Meaning

Insatiable; unquenchable; relentless. Describing a drive or desire that never subsides.

An adjective phrase formed from 飽く (to tire of, to be satisfied) in negative form: 飽かない → 飽くなき (archaic/literary). Used almost exclusively before nouns as a modifier (連体修飾). Common in formal writing, speeches, and literature to praise persistent ambition or curiosity.

Examples

1. 飽くなき探求心が彼を世界的な科学者にした。 His insatiable spirit of inquiry made him a world-renowned scientist.
2. 飽くなき向上心を持つ人間こそが時代を切り開く。 Only those with an unquenchable drive for self-improvement can forge a new era.
3. 彼女の飽くなき努力は、ついに実を結んだ。 Her relentless efforts finally bore fruit.

Usage Guide

Context: literature, speeches, biography, admiration

Tone: admiring

Origin & History

From classical Japanese: 飽く (to be satiated) + なき (literary negative attributive form of ない). The phrase means 'without ever tiring,' expressing limitless drive.

Cultural Context

Era: Literary-Modern

Generation: Adult

Social background: Educated