Etymology
Advertisement

undefined (adj.)

1610s, from un- (1) "not" + past participle of define (v.).

updated on June 22, 2012

Advertisement
Advertisement
Definitions of undefined from WordNet

undefined (adj.)
not precisely limited, determined, or distinguished;
an undefined term
some undefined sense of excitement
undefined authority
Synonyms: vague
From wordnet.princeton.edu, not affiliated with etymonline.