Main Entry:

stren·u·ous

Pronunciation:

\ˈstren-yə-wəs\

Function:

adjective

Etymology:

Latin strenuus

Date:

1599

1 a: vigorously active : energetic b: fervent, zealous <the proposal's most strenuous supporters>2: marked by or calling for energy or stamina : arduous <a strenuous hike>

synonyms see vigorous

— stren·u·os·i·ty \ˌstren-yə-ˈwä-sə-tē\ noun

— stren·u·ous·ly \ˈstren-yə-wəs-lē\ adverb

— stren·u·ous·ness noun