The Collaborative International Dictionary of English v.0.48:
Noticeably \No"tice*a*bly\, adv. In a noticeable manner. [1913 Webster]WordNet (r) 3.0 (2006):
noticeably adv 1: in a noticeable manner; "he changed noticeably over the years" [syn: perceptibly, noticeably, observably] [ant: imperceptibly, unnoticeably]