Synonyms: doctrinaire, dogmatist
Definition: a stubborn person of arbitrary or arrogant opinions
Similar words: partisan, drumbeater, zealot
Definition: a fervent and even militant proponent of something
Synonyms: doctrinaire
Definition: stubbornly insistent on theory without regard for practicality or suitability
Similar words: informative, instructive
Definition: serving to instruct or enlighten or inform