doctrinaire
Definitions
Seeking to impose a doctrine in all circumstances without regard to practical considerations.
A person who stubbornly insists on the application of a theory or dogma regardless of reality.
Examples
The professor's doctrinaire approach to teaching left no room for students to express alternative viewpoints.
He was criticized for his doctrinaire adherence to a political ideology that failed to account for the complexities of the real world.
Synonyms
dogmatic inflexible rigid authoritarian opinionated ideological uncompromising
Antonyms
pragmatic flexible open-minded adaptable liberal practical tolerant