cas·u·al·ness
noun/ˈkæʒuəlnəs/
/ˈkæʒuəlnəs/
[uncountable]- lack of care or thought; an apparent lack of care or thought
随便：缺乏照顾或思想；明显缺乏照顾或思想 - He was sure that the casualness of the gesture was deliberate.
他确信那似乎漫不经心的姿态是有意装出来的。
- He was sure that the casualness of the gesture was deliberate.
- the quality of being calm and relaxed
休闲：冷静和放松的品质 - The staff mixed professionalism and casualness.
工作人员混合了专业性和休闲性。
- The staff mixed professionalism and casualness.
- the fact of not being formal
随便：不正式 - the casualness of dress found in most bars these days
如今大多数酒吧都穿着休闲的服装
- the casualness of dress found in most bars these days
- the fact of not being permanent or regular
偶然性：不是永久性或固定性 - the casualness of their friendship
他们友谊的随意性
- the casualness of their friendship