doctrinaire

[ dok-truh-nair ]
/ ˈdɒk trəˈnɛər /

noun

a person who tries to apply some doctrine or theory without sufficient regard for practical considerations; an impractical theorist.

adjective

dogmatic about others' acceptance of one's ideas; fanatical: a doctrinaire preacher.
merely theoretical; impractical.
of, relating to, or characteristic of a doctrinaire.

Origin of doctrinaire

From French, dating back to 1810–20; see origin at doctrine, -aire

OTHER WORDS FROM doctrinaire

doc·tri·nair·ism, nounnon·doc·tri·naire, adjectiveo·ver·doc·tri·naire, adjectiveun·doc·tri·naire, adjective

WORDS THAT MAY BE CONFUSED WITH doctrinaire

doctrinal doctrinaire
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for doctrinaire

British Dictionary definitions for doctrinaire

doctrinaire
/ (ˌdɒktrɪˈnɛə) /

adjective

stubbornly insistent on the observation of the niceties of a theory, esp without regard to practicality, suitability, etc
theoretical; impractical

noun

a person who stubbornly attempts to apply a theory without regard to practical difficulties

Derived forms of doctrinaire

doctrinairism or doctrinarism, noundoctrinarian, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012