FIRMED (UP) Synonyms: 40 Similar and Opposite Words

firmed (up)

verb

past tense of firm (up)

as in hardened

to become physically firm or solid wait for the modeling clay to firm up before handling the finished pot

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Recent Examples of Synonyms for firmed (up)

Verb

The building materials are fire-resistant, as are the windows, and the eaves are fire-hardened as well.

— Steve Lopez, Los Angeles Times, 24 Oct. 2026
Formula One did not return to South Africa in 1986, as international protest over apartheid hardened.

— Nimi Princewill, CNN Money, 22 Oct. 2026

Definition of hardened

Verb

Ashby froze him with a backdoor breaking ball to make it 3-2, then Díaz attempted to check his swing but didn’t get the call, throwing up his arms in frustration.

— ABC News, ABC News, 25 Oct. 2026
This Mexican restaurant in Clearfork is known for its brisket tacos and strong drinks – their froze with rose and vodka has a two-drink limit.

— Fort Worth Star-Telegram, Fort Worth Star-Telegram, 9 Oct. 2026

Definition of froze

Verb

The Chiefs’ defense stiffened and Indy faced a fourth-and-8 from the 15-yard line.

— Pete Grathoff, Kansas City Star, 21 Sep. 2026
But after a quick touchdown drive to take a 34-27 lead, the Oregon defense stiffened, and closed out the win with back-to-back stops.

— Ian Miller OutKick, FOXNews.com, 6 Sep. 2026

Definition of stiffened

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firmaments

firmed (up)

firming (up)

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“Firmed (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/firmed%20%28up%29. Accessed 28 Oct. 2026.

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Synonyms of firmed (up)

verb

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