verb (used with object), de·fined, de·fin·ing.
verb (used without object), de·fined, de·fin·ing.
Origin of define
Examples from the Web for undefinable
But the moment she heard the shots, unaccountable, undefinable dread seized her.Kentucky's Famous Feuds and Tragedies|Chas. G Mutzenberg
As we enter, an air of that undefinable English ideality—comfort—seems diffused, as it were, in the atmosphere of the place.
Nowhere could he see a light about the house and he was oppressed by a feeling of undefinable apprehension as he pressed the bell.The Strange Adventures of Mr. Middleton|Wardon Allan Curtis
It hung about him with the undefinable feel and smell of death.The Best Short Stories of 1919|Various
Eagle-wing fixed on the maiden a glance of undefinable meaning.The Pirates of the Prairies|Gustave Aimard
British Dictionary definitions for undefinable
Word Origin for define
Word Origin and History for undefinable
late 14c., "to specify; to end," from Old French defenir "to end, terminate, determine," and directly from Latin definire "to limit, determine, explain," from de- "completely" (see de-) + finire "to bound, limit," from finis "boundary, end" (see finish (n.)). Related: Defined; defining.