noun, na-adjective, noun which may take the genitive case particle 'no'
very busy; busyness
Describes a state of being extremely busy, often with many tasks or engagements. Used as a noun, na-adjective, or no-adjective.
He leads a very busy daily life.
I am late in replying due to being very busy.
The president is extremely busy every day.
I'm leading a busy life as a new employee.
He cited his busy schedule as the reason for missing the meeting.
Due to being so busy, my reply was delayed.