hear it again

: of, relating to, or resembling a tempest : turbulent, stormy

Example sentence:
Sam and Rachel have always had a tempestuous relationship—one minute fast friends, the next snarling and at each other's throats.

Etymology:
Time is sometimes marked in seasons, and seasons are associated with the weather. This explains how "tempus," the Latin word for "time" could have given rise to an English adjective for things turbulent and stormy. "Tempus" is the root behind the Old Latin "tempestus," meaning "season," and the Late Latin "tempestuosus," the direct ancestor of "tempestuous." As you might expect, "tempus" is also the root of the noun "tempest"; it probably played a role in the history of "temper" as well, but that connection isn't as definite.