Synonyms and Antonyms of harden
1 to become physically firm or solid the glue begins to harden as soon as it is exposed to air Synonyms of harden concrete, congeal, firm (up), freeze, indurate, set, solidify Words Related to harden cake, callus, encrust (also incrust); clot, coagulate, gel, gelate, gelatinize, jell, jelly, stiffen, thicken; calcify, crystallize (also crystalize), ossify, petrify, rigidify; anneal, case-harden, temper Near Antonyms of harden deliquesce, dissolve, flux, fuse, melt, smelt, thaw, unfreeze Antonyms of harden liquefy (also liquify), soften
2 to make able to withstand physical hardship, strain, or exposure pioneer women who had been hardened by years of living on the plains Synonyms of harden fortify, indurate, inure, season, steel, strengthen, toughen Words Related to harden acclimate, acclimatize, adapt, adjust; anneal, temper; invigorate, vitalize; immunize; bolster, boost, brace, buttress, enforce, forearm, prop (up), reinforce (also reenforce), support; break in, limber (up), train; accustom, condition, habituate, naturalize Near Antonyms of harden emasculate, enervate, enfeeble, exhaust, sap, weaken; cripple, debilitate, hamstring, incapacitate; sensitize Antonyms of harden soften
3 to increase the ability of (as a muscle) to exert physical force arm muscles that were hardened by all the years of casting and hauling his fishing nets Synonyms of harden beef (up), fortify, strengthen, toughenWords Related to harden anneal, temper; firm (up), tone (up); energize, invigorate, vitalize; restrengthenNear Antonyms of harden cripple, incapacitate, paralyze; damage, harm, hurt, impair, injure; break down, wear out; sap, undercut, undermineAntonyms of harden debilitate, enervate, enfeeble, weaken
4 to make more harsh, uncompromising, or severe the government hardened restrictions on travel to and from the war-torn nation Synonyms of harden harshen, stiffen, strengthen, toughenNear Antonyms of harden lessen, moderate, softenAntonyms of harden ameliorate, ease
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