Breadcrumb Home > Thesaurus > H Synonyms of hallucinogen Find synonyms for: Noun 1. hallucinogen, hallucinogenic drug, psychedelic drug, psychodelic drug, psychoactive drug, mind-altering drug, consciousness-altering drug, psychoactive substance usage: a psychoactive drug that induces hallucinations or altered sensory experiences WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of hallucinogen (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census 50 Spookiest Halloween Quotes Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: effete Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language