proscribe UK /ˈpɹəʊskɹaɪb/US /ˈpɹoʊˌskɹaɪb/ verb3 •To forbid or prohibit.The law proscribes driving a car while intoxicated. •To denounce.The word ‘ain't’ is proscribed by many authorities. •To banish or exclude.Many Roman citizens were proscribed for taking part in rebellions. formsproscribed · proscribing · proscribes · proscribeth