Breadcrumb Home > Thesaurus > A Synonyms of attenuate Find synonyms for: Verb 1. rarefy, attenuate, weaken usage: weaken the consistency of (a chemical substance) 2. attenuate, weaken usage: become weaker, in strength, value, or magnitude Adjective 1. attenuate, attenuated, faded, weakened, decreased (vs. increased), reduced usage: reduced in strength; "the faded tones of an old recording" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of attenuate (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: saturnine Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language