doctrinarian


doc·tri·naire

D0316000 (dŏk′trə-nâr′)adj. Relating to, adhering to, or insisting upon a doctrine or theory without regard to practical considerations or problems.n. A doctrinaire person.
[French, from doctrine, doctrine, from Old French; see doctrine.]
doc′tri·nair′ism n.doc′tri·nar′i·an n.