tem·pes·tu·ous 
(tĕm-pĕsch-əs)
(tĕm-pĕsch-əs)adj.
1. Characterized by violent emotions or actions; tumultuous: a tempestuous relationship.
2. Of, relating to, or resembling a tempest: tempestuous gales.
[Middle English, from Late Latin tempestuōsus, from tempestūs, tempest, variant of tempestās; see TEMPEST.]
tem·pestu·ous·ly adv.
tem·pestu·ous·ness n.