[in.vul.ner.a.ble] adj [L invulnerabilis, fr. in- + vulnerare to wound--more at vulnerable] (1595) 1: incapable of being wounded, injured, or harmed
2: immune to or proof against attack: impregnable -- in.vul.ner.a.bil.i.ty n -- in.vul.ner.a.ble.ness n -- in.vul.ner.a.bly adv