Crossword clues for Hardened to 6 letters:HARDENSet, as concreteHARDENGelHARDENMake tougherHARDENFortifyHARDENGet firmerHARDEN1929 Nobel prize winner in chemistry.HARDENFreeze or gelHARDENCalcifyHARDENMake firmHARDENSolidifyHARDENSetHARDENGet setHARDENBecome rigidHARDENBake, perhapsHARDENBearded James of the NBAHARDENFirm upHARDENBecome pitilessHARDENBecome callousHARDENSet, as cementHARDENGet toughHARDENMake unemotionalANNEALHarden as glassSTEELSHardensSTALEDBecame dry and hardened.STEELSHardens (oneself)INURESHardensINUREDHardened by useNBAMVPAward for James HardenENUREDBecame hardened: Var.ENUREDHardenedMARCIAActress Gay HardenFREEZEHarden, in a wayENUREDHardened (to)STEELYHardenedSEASONHarden, as troopsOSSIFYHarden, in a wayMARCIAPollock Oscar winner __ Gay HardenPUMICEHardened volcanic frothSEASONHardenOSSIFYHardenINUREDHardened toENURESHardensOSSIFYHarden into boneAIRSETHardened by exposureADIDASHarden Stepback makerINURESHardens or habituatesTEMPERSoften or hardenENURESHardens after timeINURESHardens (to)STEELYCase-hardened