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
Helios Horizon performs first flight with solid-state batteries Solid-state batteries replace the flammable liquid electrolyte found in conventional lithium-ion cells with a solid material.
—
Chris Young, Interesting Engineering, 10 June 2026
The issue could heat flammable materials and potentially cause a fire, even when the vehicle is turned off.
—Sacbee.com, 10 June 2026
Rubbing alcohol is highly flammable and should never be used around heat sources or open flames.
—Karen Brewer Grossman, Southern Living, 10 June 2026
Then came those flammable four words.
—Sean Gregory, Time, 9 June 2026
See All Example Sentences for flammable
Chris Young, Interesting Engineering, 10 June 2026
The issue could heat flammable materials and potentially cause a fire, even when the vehicle is turned off.
—Sacbee.com, 10 June 2026
Rubbing alcohol is highly flammable and should never be used around heat sources or open flames.
—Karen Brewer Grossman, Southern Living, 10 June 2026
Then came those flammable four words.
—Sean Gregory, Time, 9 June 2026
See All Example Sentences for flammable
Recent Examples of Synonyms for flammable
Adjective
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Lumber mills are major sources of combustible dust.—
ABC News,
ABC News,
15 June 2026
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The department doesn't believe the explosion was sparked by the wastewater treatment plant's digester gas, combustible materials, or any of the plant's operations' explosive hazards.—
Adam Thompson,
CBS News,
10 June 2026
Adjective
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Drafted seventh overall by the San Francisco 49ers in 2011 out of Missouri, Smith had one of the most explosive starts for a defensive player in NFL history.—
Jackson Thompson,
FOXNews.com,
14 June 2026
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In recent weeks, Iran has dramatically escalated efforts to seal off its cache of near bomb-grade uranium, deliberately collapsing tunnels and booby-trapping entrances with explosive mines, according to five sources familiar with US intelligence.—
Jessie Yeung,
CNN Money,
13 June 2026
Adjective
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Many works of Georges Méliès are even believed to have been burned as the original negatives, as the nitrate film stock is incredibly fragile and inflammable.—
Munis Raza,
Interesting Engineering,
9 Mar. 2026
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Flammable and inflammable mean the same thing.—
Boston Herald editorial staff,
Boston Herald,
10 Feb. 2026
Cite this Entry
“Flammable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flammable. Accessed 21 Jun. 2026.
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