Synonyms for harden | harden synonyms

solidify (verb)

Synonyms:

freeze, congeal, strengthen, fortify, become stronger.

stiffen (verb)

Synonyms:

toughen.

temper (noun)

sear (verb)

turn to stone (verb)

Synonyms:

turn into stone.

embitter, thicken, petrify, fossilize, hardened, tougher, strengthening,