thriving metropolis booming metropolis
industrious street
Synonyms for the word "occupied" are taken, used, busy.
packed, full, busy, cramped, swarming, teeming, congested, jam-packed
They're antonyms because they mean opposite things.
Roanoke is a city, Roanoke does not have a synonym nor antonym.
A synonym for city-state would be a sovereign city-state, or a self-governing city-state.
City sidewalks, busy sidewalks, dressed in holiday style.
Ethiopia is a country not a city.
occupied, working, employed, busy, tied up betrothed, promised, pledged, affianced
city
city
City is an example.