Synonyms of undefined in English:

undefined


See definition of undefined

adjective

1‘the contract leaves some matters undefined’

SYNONYMS
unspecified, unexplained, non-specific, unspecific, indeterminate, undetermined, unfixed, unsettled
unclear, woolly, imprecise, inexact, indefinite, vague
ANTONYMS

specific, definite

2‘the lights gave a gentle, warm glow with undefined shapes and shadows’

SYNONYMS
indistinct, indefinite, formless, indistinguishable, barely perceptible, vague, hazy, misty, shadowy, nebulous, dim, obscure, blurred, blurry, bleary, out of focus
ANTONYMS

distinct, clear