[ stren-yoo-uhs ]
/ ˈstrɛn yu əs /


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

Related forms

Synonym study

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

Examples from the Web for strenuously

British Dictionary definitions for strenuously


/ (ˈstrɛnjʊəs) /


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

Derived Forms

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