01 a. That can not be removed, washed away, blotted out, or effaced; incapable of being canceled, lost, or forgotten; as, indelible characters; a…
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1.
That can not be removed, washed away, blotted out, or effaced; incapable of being canceled, lost, or forgotten; as, indelible characters; an indelible stain; an indelible impression on the memory.
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2.
That can not be annulled; indestructible.[R.]“They are endued with indelible power from above.” — Sprat.“Indelibly stamped and impressed.” — J. Ellis.
Phrases & compounds
Indelible colors —
fast colors which do not fade or tarnish by exposure.
Indelible ink —
an ink not obliterated by washing; esp., a solution of silver nitrate.
Syn.
Fixed; fast; permanent; ineffaceable.