Synonyms

nonflammable

American

[non-flam-uh-buhl] / nɒnˈflæm ə bəl /

adjective

not flammable; not combustible or easily set on fire.

nonflammable British

/ ˌnɒnˈflæməbəl /

adjective

incapable of burning or not easily set on fire; not flammable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of nonflammable

First recorded in 1960–65; non- + flammable

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:

nonflammable

The daylong effort is hazardous because of the high pressure used to test the system with helium, a nonflammable gas.

From Los Angeles Times ● Feb. 26, 2024

Like CFCs, HFCs appealed to industry because they were odorless, nonflammable and posed no serious threats to human health.

From Salon ● May 23, 2023

Anhydrous ammonia is a colorless nonflammable liquefied gas.

From Washington Times ● Sep. 3, 2022

When exposed to intense heat, they form a nonflammable shell called “char” that prevents flames from reaching the material underneath and resists the conduction of heat.

From Science Magazine ● Jan. 6, 2022

But looking through it, I see it's all metal or nonflammable plastic.

From "The Martian" by Andy Weir

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023