/ Thesaurus / P Synonyms of preclusion Find synonyms for: Noun1. obviation, forestalling, preclusion, prevention, barusage: the act of preventing something by anticipating and disposing of it effectivelyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language