Involved in activity or work
Excessively filled with detail
To make busy
Too crowded with detail
It's a large and busy hotel.
It was a warm late afternoon as I stood out on the sidewalk and looked up at the six massive columns towering above another busy and impressive train station.
He was probably too busy with school to pay attention to politics.
I do not wish to be any more busy with my hands than is necessary.
Moscow is chiefly busy with gossip, he continued.