Synonyms of stiffening

1 Syllable

set, starch, clot, firm, jell, fix, cake, gel, prop, chill

2 Syllables

jelly, benumb, freeze, harden, curdle, thicken, cement, tense, brace, sizing, strengthen, tauten, anneal, congeal, steady, candy

3 Syllables

petrify, ossify, inflate, condense, reinforce

4 Syllables

crystallize, inspissate, stabilize, solidify

5 Syllables

calcification, fossilization, ossification, coagulate, petrification, ossifications, precipitate

6 Syllables

solidification