Definition of Tempestuous

Adjective: tempestuous  tem'pes-choo-us

  1. Characterized by violent emotions or behaviour
    "a tempestuous argument";
    - stormy
     
  2. (of the elements) as if showing violent anger
    "tempestuous clouds on the horizon";
    - angry, furious, raging, wild

See also:
tempests
tempestuously