impermissible Synonyms

illicit prohibited ineligible inappropriate inadmissible improper out of bounds illegitimate illegal forbidden unacceptable disallowed banned not permitted unlawful contraband beyond the pale against the law unbearable unauthorized unmentionable criticizable unjustifiable unlicensed not allowed unpermissible unallowed unallowable verboten off-limits unethical wrongful wrong vetoed interdicted insufferable inexcusable bad displeasing disagreeable deplorable criminal intolerable invalid unwarrantable undue tabu taboo refused proscribed