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Definition of nonflammable

nonflammable

/ˌnɑːnˈflæm.ə.bəl/
(UK: non-flammable)
non · flam · ma · ble
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nonflammable Lexical Profile

nonflammable Game Scores & Validity

• adjective

1

Not easily ignited and not capable of burning rapidly when exposed to flame.

Example

"The laboratory curtains were treated with a chemical solution to make them completely nonflammable."

Synonyms
View all synonyms for nonflammable
Antonyms
View all antonyms for nonflammable

Word Nuance & Usage

Because 'inflammable' actually means easily set on fire (from the Latin verb 'inflammare'), 'nonflammable' is strongly preferred in safety warnings to unambiguously indicate that a material will not burn.

• Rhymes for nonflammable

• Nearby Words

nonfiction
nonfictional
nonfinancial
nonflammable
nonflowering
nonfluorescent
nonflying

Word Origin & Etymology

Coined in the early 20th century by combining the prefix 'non-' with 'flammable' (from Latin 'flammare', meaning to catch fire) to provide an unmistakable antonym for 'flammable' and avoid confusion with 'inflammable'.

Cite this Entry

Wordmom. (2026). Definition of Nonflammable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/nonflammable
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