doctrinaire

Definition

A person who stubbornly holds to a philosophy or opinion regardless of its feasibility.

Etymology

Borrowed from French doctrinaire, from doctrine + -aire.

Example Sentences

• "And he is not above feeling grave and well-contained satisfaction wherever the socialist doctrinaire has been contradicted by men attempting to practise coöperation in the midst of the competitive system, as in Belgium."
• "Or, shall we play the doctrinaire, and hint that at thirty-four the tides of life are calmer and cognizant of many sources instead of but one—as at four-and-twenty?"