Diuturnal

adj

adj ·Uncommon ·Advanced level

Definitions

Adjective

1
durable, long-lasting

Synonyms

abiding abiding aged ancient antique chronic

Antonyms

durable long-lasting

Etymology

Borrowed from Latin diūturnus, + -al.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.