fireproof

Word parts

fire + -proof

Adjective

Positive fireproof

Comparative more fireproof

Superlative most fireproof

1. If something is fireproof, it is resistant to fire.

Verb

Plain form fireproof

Third-person singular fireproofs

Past tense fireproofed

Past participle fireproofed

Present participle fireproofing

1. If you fireproof something, you make it fireproof.