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}]
     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}]
Source: WordNet® 2.0