"无所事事"的英文

do nothing

无所事事，必干坏事。
Doing nothing is doing ill.

饱食终日，无所事事的人是社会上的寄生虫。
Those who loaf all day and do nothing are social parasites.

他宁愿整天忙碌而不愿无所事事。
He would rather work all day long than do nothing.

一整天他除了看电视无所事事。
He did nothing all day but watch TV.

to do nothing.

Nothing

mess around 是说 无所事事的玩
fool around 往往有贬低的意思
要看你在什么语境了

hell around