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.