incredible Antonyms

credible penny plain traditional supposable stark standard simple sheer restrained quotidian questionless pure probable presumable poor plausible unsophisticated unmingled unmixed nothing other than not striking not elaborated not beautiful not much for looks no oil painting unpatterned odds on not much to look at no-frills unremarkable muted run-of-the-mill bare bones plain ordinary normal default creditable conventional conjecturable conceivable commonplace common cogitable believable bare bad average austere apparent