casual
/ˈkæʒuəl; `kæʒʊəl/ adj
1 [esp attrib 尤作定语]
happening by chance 偶然的; 碰巧的
a casual encounter, meeting, visit, etc 邂逅、 不期而遇、 不意的拜访.
2
(a) [esp attrib 尤作定语]
made or done without much care or thought; offhand 不经意的; 随便的; 马虎的; 临时的
a casual remark 漫不经心的话.
(b) (derog 贬) showing little concern; nonchalant; irresponsible 漠不关心的; 无动於衷的; 不负责任的
His attitude to his job is rather casual. 他的工作态度不太认真.
(c) [esp attrib 尤作定语]
not methodical or thorough; not serious 无条理的; 不彻底的; 不认真的
a casual inspection 草率的检查
a casual glance at a book 胡乱看一本书
a casual observer, reader, etc 马虎的观察者、 读者等.
3 (of clothes) for informal occasions; not formal （衣物）便服的, 非正式的: casual wear 便装.
4 [attrib 作定语]
not permanent; irregular; part-time 非永久的; 不定期的; 部分时间的
earn one's living by casual labour 靠做短工为生
a casual labourer 临时工
casual sex, ie not involving a lasting relationship 萍水相逢的性行为（非持久的关系）.
5 [attrib 作定语]
slight; superficial 轻微的; 表面的; 肤浅的
a casual acquaintance泛泛之交.