Breadcrumb Home > Thesaurus > S Synonyms of sealant Find synonyms for: Noun 1. sealant, sealer, sealing material usage: a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sealant (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: felicitous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language