fireproof
Americanadjective
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resistant to destruction by fire.
-
totally or almost totally unburnable.
verb (used with object)
adjective
verb
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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fireproofsimple
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fireproofssimple
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have fireproofedperfect
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has fireproofedperfect
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am fireproofingprogressive
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are fireproofingprogressive
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is fireproofingprogressive
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have been fireproofingperfect progressive
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has been fireproofingperfect progressive
Past
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fireproofedsimple
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had fireproofedperfect
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was fireproofingprogressive
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were fireproofingprogressive
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had been fireproofingperfect progressive
Future
Etymology
Origin of fireproof
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The Ukrainian president is the same as ever—steadfast, with a nervous system that seems fireproof and capable of withstanding anything.
From The Wall Street Journal ● Mar. 18, 2026
His insurance should cover most of the rebuild, which includes pricey fireproof features.
From The Wall Street Journal ● Jan. 6, 2026
Mesh material and plastic sheets which were found on the outside of the buildings are not believed to be fireproof, while polystyrene was also found on the buildings' windows.
From BBC ● Nov. 27, 2025
“If 30 fireproof homes are spread across the Palisades, we’d be happy to insure, but the benefits won’t be as significant,” he said.
From Los Angeles Times ● Nov. 12, 2025
“All right. Consider it done. I’ll make the fireproof pouch tonight at the loom, when I’ve cleaned up. But what can I do now, while my hands are dirty?”
From "The House of Hades" by Rick Riordan
A solid wall of fireproofs along Arch Street had held the fire from spreading eastward there, but as Franklin Street was passed in the southward sweep, the eastward urging was not wholly to be denied.
From White Ashes by Kennedy, Sidney R. (Sidney Robinson)
One of the more recent fireproofs was Eugene Rivalli, whose act included, besides the usual effects, a cage of fire in which he stood completely surrounded by flames.
From The Miracle Mongers, an Exposé by Houdini, Harry
The double row of fireproofs, which was to have held the fire at bay, was attacked and went down; then the Chamber of Commerce melted away; shortly after the court-house was assailed.
From Lippincott's Magazine of Popular Literature and Science, Vol. 12, No. 32, November, 1873 by Various
"It's a 100% wood house, so it's not like we fireproofed it or anything," Dora Atwater Millikin told the Los Angeles Times.
From BBC ● Aug. 21, 2023
“It’s a 100% wood house so it’s not like we fireproofed it or anything,” Atwater Millikin said.
From Los Angeles Times ● Aug. 18, 2023
In more modern and legally fireproofed buildings, fires are more likely to be contained, thanks to fireproof building materials and doors that automatically close, sealing off the fire in smaller spaces.
From New York Times ● Jan. 11, 2022
That popularity has fireproofed the Globes against years of criticism — and now makes it less likely the show will go away permanently.
From Washington Post ● May 13, 2021
Some were elaborate structures of galvanized iron, carefully fireproofed and covered with notices warning against smoking; others, again, were plain, hastily erected wooden structures.
From The Boy Aviators' Treasure Quest by Goldfrap, John Henry
Price hikes in notoriously opaque power markets can stem from transmission upgrades, volatile commodity costs and expensive fireproofing measures, factors that vary by region.
From The Wall Street Journal ● Nov. 10, 2025
Aghayere suggested that a “perfect cocktail” of flammable gasoline, relatively lackadaisical bridge fireproofing standards, and the heating of the bridge’s steel supports could have done.
From Slate ● Jun. 16, 2023
PCBs were used for decades in industrial and electrical equipment, hydraulic fluids, fireproofing, paper products, ink and paint.
From Seattle Times ● Mar. 7, 2022
Mr. Kumamaru said some older buildings did not have the recommended two exits per floor or fireproofing on interior finishes.
From New York Times ● Dec. 16, 2021
The necessity of eliminating wood to the greatest extent possible and fireproofing what remains, was shown by the destruction of the Spanish men-of-war.
From Porto Rico Its History, Products and Possibilities... by Hall, Arthur D.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
