doctrinaire

Definition of Doctrinaire in English :

1. doctrinaire, dogmatist

a stubborn person of arbitrary or arrogant opinions

2. doctrinaire

stubbornly insistent on theory without regard for practicality or suitability

WordNet Lexical Database for English. Princeton University. 2010.

Doctrinaire

adjective

1.

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

2.

theoretical; impractical

noun

3.

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

noun

1.

a person who dogmatically seeks to apply theories regardless of the practical problems involved

adjective

2.

stubbornly adhering to a doctrine or theory

adj.

Relating to, adhering to, or insisting upon a doctrine or theory without regard to practical considerations or problems.

n.

A doctrinaire person.