Thesaurus
Synonyms & Antonyms of firm (up)
to become physically firm or solid
- wait for the modeling clay to firm up before handling the finished pot
Synonyms for firm (up)
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Antonyms for firm (up)
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“Firm (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firm%20%28up%29. Accessed 29 Sep. 2022.
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