Synonym word of hardiness:
assurance, audaciousness, brass, cheek, chutzpah, cockiness, crust, defiance, disrespectfulness, effrontery, forwardness, gall, guts, gutsiness, hardiness, impertinence, impudence, insolence, moxie, nerve, rudeness, shamelessness, spunk, stuff, temerity
assurance, audaciousness, brass, cheek, chutzpah, cockiness, crust, defiance, disrespectfulness, effrontery, forwardness, gall, guts, gutsiness, hardiness, impertinence, impudence, insolence, moxie, nerve, rudeness, shamelessness, spunk, stuff, temerity