as in hardened
to become physically firm or solid
wait for the modeling clay to firm up before handling the finished pot
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for firmed (up)
Verb
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He was released, but the experience hardened his rage for the regime.—
Cora Engelbrecht,
New Yorker,
22 Jan. 2026 -
In their study describing the findings, published in Ecology and Evolution, the authors argue that these later marks are brighter because male deer antlers have fully hardened and their rubs can expose more inner wood.—
Anirban Mukhopadhyay,
Scientific American,
21 Jan. 2026
Verb
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Lake Superior almost froze over — at 92-96% ice coverage — during the 2013-14 ice season, according to Northern Michigan History.—
Sarah Moore,
Freep.com,
26 Jan. 2026
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When was the last time the Ohio River froze over?—
Bebe Hodges,
Cincinnati Enquirer,
21 Jan. 2026
Verb
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As the Timberwolves’ defense stiffened, their shots finally started falling.—
Jon Krawczynski,
New York Times,
12 Jan. 2026
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Outrage from the left about that maneuver stiffened Democratic spirits for a confrontation in the fall.—
Niall Stanage,
The Hill,
31 Dec. 2025
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“Firmed (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firmed%20%28up%29. Accessed 30 Jan. 2026.
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