I. ˌdäk-trə-ˈner noun
Etymology: French, from doctrine
Date: 1831
: one who attempts to put into effect an abstract doctrine or theory with little or no regard for practical difficulties
II. adjective
Date: 1834
: of, relating to, or characteristic of a doctrinaire : dogmatic
Synonyms: see dictatorial
• doc·tri·nair·ism -ˈner-ˌi-zəm noun