Webster’s Revised Unabridged Dictionary · 1913
Tempestuous
Tem·pes′tu·ous, a. [L. tempestuous: cf. OF. tempestueux, F. tempêtueux.] Of or pertaining to a tempest; involving or resembling a tempest; turbulent; violent; stormy; as, tempestuous weather; a tempestuous night; a tempestuous debate. — Tem·pes′tu·ous·ly, adv. — Tem·pes′tu·ous·ness, n.
They saw the Hebrew leader, Waiting, and clutching his tempestuous beard. Longfellow.