1. Noun, Na-adjective (keiyodoshi), Noun which may take the genitive case particle 'no'

   1.

   being very busy; busyness

Example sentences

• ここ2カ月、多忙を極めた。

  I've been as busy as a bee for the past two months.

• 多忙な毎日を送っています。

  I live a busy life.