The Collaborative International Dictionary of English v.0.48:
Blamelessly \Blame"less*ly\, adv. In a blameless manner. [1913 Webster]WordNet (r) 3.0 (2006):
blamelessly adv 1: in an irreproachable and blameless manner; "she had lived blamelessly until she met this man" [syn: irreproachably, blamelessly]