as in combustible
capable of catching or being set on fire
avoid wearing loose flammable clothing when using the blowtorch
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Recent Examples of flammable
For maximum effectiveness, gas detectors should be installed low to the ground near gas appliances, since most flammable gases are heavier than air.
—
Lauren Bengtson, Better Homes & Gardens, 21 Oct. 2025
This replaces a solid material that replaces the flammable liquid electrolyte found in conventional batteries.
—Christopher McFadden, Interesting Engineering, 19 Oct. 2025
Never use gasoline, kerosene, or any other flammable liquid when starting a fire.
—Jade Jackson, IndyStar, 19 Oct. 2025
Butane, a flammable gas, cannot be shipped and is the only item omitted from this kit.
—Bestreviews, Mercury News, 16 Oct. 2025
See All Example Sentences for flammable
Lauren Bengtson, Better Homes & Gardens, 21 Oct. 2025
This replaces a solid material that replaces the flammable liquid electrolyte found in conventional batteries.
—Christopher McFadden, Interesting Engineering, 19 Oct. 2025
Never use gasoline, kerosene, or any other flammable liquid when starting a fire.
—Jade Jackson, IndyStar, 19 Oct. 2025
Butane, a flammable gas, cannot be shipped and is the only item omitted from this kit.
—Bestreviews, Mercury News, 16 Oct. 2025
See All Example Sentences for flammable
Recent Examples of Synonyms for flammable
Adjective
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In the late twentieth century, fire agencies urged homeowners to replace flammable wooden shingles with alternatives such as Spanish tiles, which are made from non-combustible terra-cotta.—
Ingfei Chen,
New Yorker,
22 Oct. 2025
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That could mean making the blood inside their head combustible.—
Jennifer Maas,
Variety,
22 Oct. 2025
Adjective
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Those detonations had the explosive equivalent of one Hiroshima-sized atomic bomb every day for 20 years, according to a 2025 report from the Institute for Energy and Environmental Research (IEER).—
Brad Lendon,
CNN Money,
4 Nov. 2025
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Anthropic, maker of the Claude chatbot, is projecting explosive growth—forecasting as much as $70 billion in revenue by 2028, up from about $5 billion this year, according to The Information.—
Sharon Goldman,
Fortune,
4 Nov. 2025
Adjective
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And all this against an inflammable backdrop of geopolitical crises including but not limited to the Israel-Hamas war and Russia's invasion of Ukraine.—
John Leicester,
Quartz,
15 Apr. 2024
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Heat also stresses old electrical systems — insulation breaks down; lubricants in relays dry out — and a not-insignificant amount of the subway’s electrical wiring dates to the 1920s and 1930s, some of it cloth-covered, inflammable, and pervious to water.—
Curbed,
Curbed,
28 July 2023
Cite this Entry
“Flammable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flammable. Accessed 8 Nov. 2025.
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