doctrinaire

given to or marked by the forceful expression of strongly held opinions <a doctrinaire conservative, the columnist takes special delight in baiting liberals> Synonyms dogmatic, opinionated, opinionative, opinioned, pontifical, self-opinionatedRelated Words adamant, adamantine, hardheaded, headstrong, implacable, inflexible, mulish, obdurate, obstinate, pertinacious, perverse, pigheaded, rigid, self-willed, stubborn, unbending, unyieldingNear Antonyms broadminded, open, open-minded, receptiveAntonyms latitudinarian, undoctrinaire, undogmatic