offhand
adj
(of behaviour, speech, etc) too casual; abrupt (指行为、 言语等)过於随便的, 唐突的
He was rather offhand with me. 他对我未免太随便了.
I don´t like his offhand manner. 我不喜欢他那粗鲁的态度. offhand, adv without previous thought 未假思索地; 不经考虑地
I can´t say offhand how much money I earn. 我一下子说不上来我挣多少钱.
Offhand I can´t quote you an exact price. 我无法立即给你报个准价.