from appearances alone; "irrigation often produces bumper crops from apparently desert land"; "the child is seemingly healthy but the doctor is concerned"; "had been ostensibly frank as to his purpose while really concealing it"-Thomas Hardy; "on the face of it the problem seems minor"
casually thoughtless or inconsiderate; "an offhand manner"; "she treated most men with offhand contempt"
in a casually inconsiderate manner; "replied offhand, his mind a million miles away"; "she threw him over offhandedly without even a Dear-John letter"
without previous thought or preparation; "couldn't give the figures offhand"; "we decided offhand to go to Canada"; "she had made these remarks offhandedly"