offhand
adj. 随便的；即时的；无准备的；即席的
adv. 随便地；即席地；即时地
例句
He was very offhand with me.
他完全是在敷衍我。
《牛津词典》
I don't know offhand how much we made last year.
我一时还真说不清我们去年赚了多少钱。
Consumers found the attitude of its staff offhand and generally offensive to the paying customer.
消费者认为职员态度漫不经心，通常冒犯来这些花了钱的顾客。
《柯林斯英汉双解大词典》
