Synonyms of firm (up)

firm (up)

verb

as in to freeze

to become physically firm or solid

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

Synonyms & Similar Words

• freeze
• harden
• stiffen
• concrete
• solidify
• indurate
• congeal
• set
• incrust
• cake
• gel
• encrust
• gelate
• crystallize
• thicken
• case-harden
• coagulate
• crystalize
• callus
• petrify
• gelatinize
• clot
• rigidify
• jell
• temper
• jelly
• ossify
• calcify
• anneal

Antonyms & Near Antonyms

• soften
• liquefy
• dissolve
• melt
• flux
• fuse
• liquify
• thaw
• smelt
• deliquesce
• unfreeze