The Collaborative International Dictionary of English v.0.48:
Churlishly \Churl"ish*ly\, adv. In a churlish manner. [1913 Webster]WordNet (r) 3.0 (2006):
churlishly adv 1: in a churlish manner; "the store owner treated his customers churlishly" [syn: churlishly, surlily]