Origin: 1500–10; < LL
tempestuōsus, deriv. of
tempestus, var. of
tempestās tempest (
see -ous ); r. earlier
tempeste(
u)
ous, tempestious (
see -eous, -ious )

Related forms: tem⋅pes⋅tu⋅ous⋅ly, adverb
tem⋅pes⋅tu⋅ous⋅ness, noun
Synonyms:
2. violent, stormy.