Pronunciation: (tem-pes'chOO-us), [key]
1. characterized by or subject to tempests: the tempestuous ocean.
2. of the nature of or resembling a tempest: a tempestuous wind.
3. tumultuous; turbulent: a tempestuous period in history.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.