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

Officials said in a statement posted on social media Sunday, a witness captured home surveillance video of a man smashing a window of a parked car and igniting it after pouring flammable liquid inside near Tara Drive Saturday night. — Marcella Baietto, CBS News, 28 June 2026

If the lint isn’t cleaned out of the trap regularly, additional buildup can cause longer drying times, unnecessary overwork of the dryer, and a hazard for fires since lint is highly flammable. — Rebecca Jones, Southern Living, 28 June 2026

But over the nearly one-and-a-half years since the 2025 mega-fires, native and invasive grasses, bushes and trees have begun to regrow, weaving flammable greenery across the landscape. — Connor Sheets, Los Angeles Times, 26 June 2026

Solid-state lithium batteries offer a non-flammable alternative by replacing liquids with solid mediums, but developing all-ceramic versions for miniature devices has been difficult. — Mrigakshi Dixit, Interesting Engineering, 25 June 2026