Breadcrumb Home > Thesaurus > P Synonyms of phenelzine Find synonyms for: Noun1. phenelzine, Nardil, monoamine oxidase inhibitor, MAOIusage: monoamine oxidase inhibitor (trade name Nardil) used to treat clinical depressionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of phenelzine (Dictionary) ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language