oligarchical (adjective)

1. In the dystopian novel, the oligarchical government controlled every aspect of society.

2. According to Greek mythology, the gods lived in an oligarchical society on Mount Olympus.

3. During the Roman Empire, the ruling class was a small oligarchical group known as the patricians.

4. In the comic book series, the superhero fights against an oligarchical supervillain who seeks to dominate the city.