busiest
adj. A2 Elementary US //ˈbɪziəst// UK //bˈɪzɪəst// busiest
adj. having a lot of activity or work to do. You use this word to describe a person, place, or time that is very busy.
adj. having a high level of activity, work, or traffic; the superlative form of busy. Typically used attributively before a noun or predicatively after a linking verb.
This is the busiest time of the year.
The airport is busiest during the summer holidays when many families travel abroad.
The city center becomes its busiest hub during the evening rush hour, with pedestrians and vehicles converging from every direction.