The Collaborative International Dictionary of English v.0.48:
Disagreeably \Dis`a*gree"a*bly\, adv. In a disagreeable manner; unsuitably; offensively. [1913 Webster]WordNet (r) 3.0 (2006):
disagreeably adv 1: in a disagreeable manner; "`I took no harm from the journey, thank you,' she said disagreeably" [ant: agreeably, enjoyably, pleasantly]