Synonyms of flammable

flammable

adjective

ˈfla-mə-bəl 

as in combustible

capable of catching or being set on fire

avoid wearing loose flammable clothing when using the blowtorch

Synonyms & Similar Words

• combustible
• explosive
• inflammable
• ignitable
• combustive
• fiery
• burnable
• touchy
• incendiary

Antonyms & Near Antonyms

• fireproof
• nonflammable
• noncombustible
• incombustible
• noninflammable
• unburnable
• nonexplosive
• nonburnable

Example Sentences

Recent Examples of flammable

The contraband included tons of what are called overloaded fireworks, along with highly flammable chemicals used to manufacture fireworks. — Joe Rubin, Sacbee.com, 17 July 2026

Remove flammable things in the yard, particularly within five feet of a building, to lower the chance of fire reaching it at all. — Mira Rojanasakul, New York Times, 16 July 2026

Furthermore, the dielectric fluid used is entirely non-flammable. — Mrigakshi Dixit, Interesting Engineering, 15 July 2026

Authorities are looking at whether the venue’s ceiling had especially flammable soundproofing foam, whether its exits were accessible and unlocked and whether the venue was legally registered. — Tian MacLeod Ji, Los Angeles Times, 15 July 2026