as in freezing
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 firming (up)
Verb
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Bernal says Mamdani overcame Cuomo's attacks over his relatively thin resume by offering big progressive ideas, like freezing apartment rents and offering free city bus service, that appeal to many young voters.—
Brian Mann,
NPR,
22 Oct. 2025 -
Numerous states in the Midwest are facing a frost advisory late Tuesday and overnight into Wednesday as temperatures could dip to freezing or just below.—
Deputy News Editor,
MSNBC Newsweek,
22 Oct. 2025
Verb
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The hardening public mood in both capitals reinforces hawkish instincts.—
Lizzi C. Lee,
Time,
17 Oct. 2025
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Over time, this plaque buildup can lead to hardening and narrowing of the arteries.—
Angelica Bottaro,
Verywell Health,
6 Oct. 2025
Verb
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Afterwards, a squaring solution—a powdery mixture of water and a gel-like batter used in the decorative cake business—is applied to the inside of the hat’s crown to act as a stiffening agent.—
Eric Twardzik,
Robb Report,
3 Oct. 2025
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China has been a consistent source of stress for Apple, given the stiffening smartphone competition and its huge manufacturing presence in the country.—
Morgan Chittum,
CNBC,
15 Sep. 2025
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Cite this Entry
“Firming (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firming%20%28up%29. Accessed 23 Oct. 2025.
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