stiffens Definition

tighten, constrain, tighten up, toughens, softens, loosens, tightens, relaxes, hardens, eases, flexes, strengthens, weakens, lowers, sags, lightens, straightens, alters, lengthens, thickens, improves, adjusts, warms, shrinks, slows, modifies, pushes, cools, expands, intensifies, flattens, sharpens, boosts, numbs, stirs, enhances, soaks, renews, acclimates, shakes, lessens, squeezes, soothes, melts, calms, deforms, droops, broadens, sways, readjusts, convulses, hurts, pinches, freshens, brightens, bolsters, adapts, fortifies, thins, quivers, inflates, erodes, elongates, restricts, deepens, repositions, aggravates, kneads, enacts, plumps, constricts, accelerates, reduces, deteriorates, provokes, shortens, quickens, chokes, enforces, abrades, rejuvenates, deflates, protects, stabilizes, quiets, ratchets, suppresses, tames, moistens, enlarges, pulverizes, rouses, unsettles, deadens, stimulates, evades, darkens, bends, revises, pounces,