adj. 1. Characterized by violent emotions or actions; tumultuous: a tempestuous relationship.

What is tempestuous wind?

tempestuous \ tem-PESS-chuh-wus \ adjective. : of, relating to, or resembling a violent storm : turbulent, stormy.

What is a tempestuous person?

The adjective tempestuous can describe violent weather, but it can also figuratively describe something that just has the characteristics of such blustery and turbulent weather. A person could be described as tempestuous if she's prone to violent mood swings and fits of passion. Impetuous is a synonym.