WordNet (r) 3.0 (2006):
offhandedly adv 1: without previous thought or preparation; "couldn't give the figures offhand"; "we decided offhand to go to Canada"; "she had made these remarks offhandedly" [syn: offhand, offhanded, offhandedly] 2: in a casually inconsiderate manner; "replied offhand, his mind a million miles away"; "she threw him over offhandedly without even a Dear-John letter" [syn: offhand, offhanded, offhandedly]