/ Thesaurus / S Synonyms of soft drug Find synonyms for: Noun1. soft drug, drug of abuse, street drug, narcoticusage: a drug of abuse that is considered relatively mild and not likely to cause addictionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language