1. Stubbornly insistent on theory without regard for practicality or suitability
   "His doctrinaire approach to economic policy ignored real-world complexities"

1. A stubborn person of arbitrary or arrogant opinions
   "The doctrinaire refused to consider any viewpoint that contradicted his own";
   - dogmatist

Derived forms: doctrinaires

See also: informative, instructive

Type of: drumbeater, partisan, zealot

Encyclopedia: Doctrinaire