Uninflammable

adj

adj ·Rare ·Advanced level

Definitions

Adjective

1
Not inflammable.

Synonyms

fireproof fireproof incombustible incombustible inflammable non flammable

Antonyms

combustible flammable inflammable

Etymology

From un- + inflammable. Attested since the 17th century.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.