strenuous

[ stren-yoo-uhs ]
/ ˈstrɛn yu əs /

adjective

characterized by vigorous exertion, as action, efforts, life, etc.: a strenuous afternoon of hunting.
demanding or requiring vigorous exertion; laborious: To think deeply is a strenuous task.
vigorous, energetic, or zealously active: a strenuous person; a strenuous intellect.

Origin of strenuous

1590–1600; < Latin strēnuus; see -ous

OTHER WORDS FROM strenuous

synonym study for strenuous

3. See active.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for strenuousness

British Dictionary definitions for strenuousness

strenuous
/ (ˈstrɛnjʊəs) /

adjective

requiring or involving the use of great energy or effort
characterized by great activity, effort, or endeavour

Derived forms of strenuous

strenuosity (ˌstrɛnjʊˈɒsɪtɪ) or strenuousness, nounstrenuously, adverb

Word Origin for strenuous

C16: from Latin strēnuus brisk, vigorous
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012