/ Thesaurus / P Synonyms of psychodelic drug Find synonyms for: Noun1. hallucinogen, hallucinogenic drug, psychedelic drug, psychodelic drug, psychoactive drug, mind-altering drug, consciousness-altering drug, psychoactive substanceusage: a psychoactive drug that induces hallucinations or altered sensory experiencesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language