/ Thesaurus / S Synonyms of surface active Find synonyms for: Adjective1. surface-active, active (vs. inactive)usage: capable of lowering the surface tension of a liquid; used especially of detergentsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language