The adjective tumultuous means "disruptive," "troubled," "disorderly," or "turbulent."

You might hear the adjective tumultuous in news stories about riots because it's one of the best words to describe a group of people in turmoil or disorder, but it can mean anything in a state of unrest. For example, you might steer your boat into a safe harbor before a heavy storm, so the tumultuous waves won't sweep you onto the rocks.

Definitions of tumultuous

adj characterized by unrest or disorder or insubordination

“the tumultuous years of his administration”
disruptive, riotous, troubled, turbulent
characterized by unrest or disorder