忙しいこと
忙しいさまの
忙しそうなさま
非常に忙しいこと
非常に忙しいさま
the condition of being busy
Press of business Keeps one's mind on the stretch.
being busy with a lot of work
being busy with much work
忙しくなった。
I got busy.
忙しくなるよ。
the condition of being unemployed
Thanks for your trouble!
せっせと働くさま
a well-paying job