Thesaurus

firm (up)

verb

Synonyms and Antonyms of firm (up)

to become physically firm or solid

wait for the modeling clay to firm up before handling the finished pot

Synonyms of firm (up)

concrete, congeal, freeze, harden, indurate, set, solidify

Words Related to firm (up)

cake, callus, encrust (also incrust)

clot, coagulate, gel, gelate, gelatinize, jell, jelly, stiffen, thicken

calcify, crystallize (also crystalize), ossify, petrify, rigidify

anneal, case-harden, temper

Near Antonyms of firm (up)

deliquesce, dissolve, flux, fuse, melt, smelt, thaw, unfreeze

Antonyms of firm (up)

liquefy (also liquify), soften

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misnomer

a wrong name or inappropriate designation