unbelievable synonyms

unbelievable

modif.

beyond belief, past belief, incredible, inconceivable, staggering, unimaginable, not to be credited, dubious, doubtful, improbable, questionable, implausible, palpably false, unveracious, open to doubt, a bit thick*; see also false 1, 2, 3, unlikely.

Antonyms likely*, believable*, probable.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.