What does "busier" mean?

comparative form of busy: more busy

What is a synonym for "busier"?

Common synonyms include: active, engaged, more active, more filled, more human activity, occupied.

/ˈbɪziɚ/ adj

adj ·Rare ·Advanced level

Adjective

1
comparative form of busy: more busy comparative, form-of
"The concourse at Glasgow Central is clean and clutter-free, making it easy for large numbers of passengers to pass through even at busier times."

"I have been busier than the two boys."