- interventionist⇄adj. 1. favoring intervention.
Ex. interventionist foreign policy.
2. of or having to do with intervention or interventionists. - interventionist⇄interventionist, noun, adjective.
- interventionist⇄noun 1. a person who favors intervention, especially in the affairs of another country.
2. (Medicine.) a person who favors medical intervention in the course of a disease rather than leaving the patient to nature.