FAQs About the word toughening

toughening

of Toughen

hardening,strengthening,beefing up,fortifying,tempering,annealing,energising,firming (up),invigorating,toning (up)

crippling,debilitating,hurting,weakening,damaging,enervating,weakening,harmful,impairing,incapacitating

toughened => toughened, toughen => toughen, tough-cake => Tough cake, tough luck => Tough luck, tough guy => tough bloke,