/ temˈpestʃuəs; NAmE / adjective
1.
( formal ) full of extreme emotions
SYN stormy :
a tempestuous relationship
2.
( formal or literary ) caused by or affected by a violent storm
SYN stormy :
tempestuous seas
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WORD ORIGIN
late Middle English : from late Latin tempestuosus , from Latin tempestas season, weather, storm, from tempus time, season.