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

Investigators accused Smith of operating the tool without clearing flammable vegetation around his work area and of failing to have firefighting tools on hand, both of which are required by law. — Andrew Graham, Sacbee.com, 5 Aug. 2026

Today, various combinations are packed into cardboard spheres or cylinders—shells—along with fuses coated in a flammable slurry, then sealed inside kraft paper and shot from fibreglass mortars. — Paige Williams, New Yorker, 3 Aug. 2026

All of these potentially flammable items should be air-dried on a clothesline or drying rack. — Mary Marlowe Leverette, The Spruce, 2 Aug. 2026

Pine trees coat the forest floor with mounds of flammable dead leaves that are springy underfoot but which can smolder long after a blaze. — ABC News, 31 July 2026