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 technology is intended to deliver non-flammable, ultra-safe Battery Energy Storage Systems (BESS) for grid energy needs. — Mrigakshi Dixit, Interesting Engineering, 27 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

The club had only one fire extinguisher and its ceiling was made of highly flammable material, while the venue’s 250-person capacity was exceeded by double the amount of people, most of them between the ages of 16 and 25. — Beatrice Loayza, Variety, 21 Aug. 2026

The regulations seek to reduce the risk of fire following paths of vegetation and flammable materials to homes, and also to help keep homes from catching fire because embers ignited materials beside them. — Ethan Baron, Mercury News, 20 Aug. 2026