dateless

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

adjective having no known beginning and presumably no end
adjective of such great duration as to preclude the possibility of being assigned a date
adjective not bearing a date

Unknown. Perhaps derived from Old English þeatless (“thoughtless, without plan”). See also deedless.

Just the watchman, telling his dateless tale of safety? — The Forsyte Saga - Complete, John Galsworthy

endless, sempiternal

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