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

Isopropyl alcohol is flammable; store the container in a cool place away from any direct heat source. — Mary Marlowe Leverette, The Spruce, 29 Aug. 2026

Headlines from the early 2020s were filled with Teslas burning in garages and Chevy Bolts taken off the road due to flammable batteries. — Todd C. Frankel, Washington Post, 28 Aug. 2026

But additional warnings were issued for Southern California's mountain ranges, as drier conditions throughout the week have made the region susceptible to flammable conditions. — Noe Padilla, USA Today, 28 Aug. 2026

Opening these areas to commercial logging and thinning risks increasing wildfires by removing mature fire-resistant trees, increasing the drying effects of sun and wind and leaving behind flammable debris. — Patrick Parenteau, The Conversation, 26 Aug. 2026