stiffening Synonyms

become solid toughen tighten tightening thicken tense strengthen stiffen solidify rigidification rigidifying make stiff laundry starch become stiff rigor mortis reinforcing firming tighten up tense up solidifying solidification setting curing crystallization constrain congeal concretion coagulation coagulate casehardening fortify fossilization rigidity reinforce petrification ossification jell harden hardening gelatification calcification