The Collaborative International Dictionary of English v.0.48:
Cynically \Cyn"ic*al*ly\ (s[i^]n"[i^]*kal*l[y^]), adv. In a cynical manner. [1913 Webster]WordNet (r) 3.0 (2006):
cynically adv 1: with cynicism; in a cynical manner; "Larsen's frost- blackened lips curved cynically"