permissible 18 antonyms and opposites of permissible. Adj — Allowed by rules, law, or custom. Synonyms for permissible abideable acceptable admissible allowable sufferable supportable tolerable Antonyms for permissible impermissible inacceptable insufferable insupportable intolerable nonacceptable nonadmissible nonallowable nonpermissible nontolerable objectionable unabideable unacceptable unallowable unpermissible unsufferable unsupportable untolerable ← Back to the full definition of permissible
