Breadcrumb Home > Thesaurus > F Synonyms of fireproof Find synonyms for: Verb 1. fireproof, proof usage: make resistant to fire Adjective 1. fireproof, noncombustible (vs. combustible), incombustible usage: impervious to damage by fire WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fireproof (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: pusillanimous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language