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.

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 heated by the torch, coating spewed out nonflammable gases, such as carbon dioxide.

From Science Magazine • Jan. 6, 2022

Midgley set out to create a gas that was stable, nonflammable, noncorrosive, and safe to breathe.

From "A Short History of Nearly Everything" by Bill Bryson

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