Found 2 items, similar to stiffen.
English → English (WordNet) Definition: stiffen stiffen v 1: become stiff or stiffer; “He stiffened when he saw his boss enter the room” [ant: loosen] 2: make stiff or stiffer; “Stiffen the cream by adding gelatine” [ant: loosen] 3: restrict; “Tighten the rules”; “stiffen the regulations” [syn: tighten, tighten up, constrain]
English → English (gcide) Definition: Stiffen Stiffen \Stiff"en\, v. t. [imp. & p. p. Stiffened; p. pr. & vb. n. Stiffening.] [See Stiff.] 1. To make stiff; to make less pliant or flexible; as, to stiffen cloth with starch. [1913 Webster] Stiffen the sinews, summon up the blood. --Shak. [1913 Webster] 2. To inspissate; to make more thick or viscous; as, to stiffen paste. [1913 Webster] 3. To make torpid; to benumb. [1913 Webster] Stiffen \Stiff"en\, v. i. To become stiff or stiffer, in any sense of the adjective. [1913 Webster] Like bristles rose my stiffening hair. --Dryden. [1913 Webster] The tender soil then stiffening by degrees. --Dryden. [1913 Webster] Some souls we see, Grow hard and stiffen with adversity. --Dryden. [1913 Webster]