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 formsstren·u·ous·ly, adverbstren·u·ous·ness, stren·u·os·i·ty [stren-yoo-os-i-tee] /ˌstrɛn yuˈɒs ɪ ti/, nounqua·si-stren·u·ous, adjectivequa·si-stren·u·ous·ly, adverbsu·per·stren·u·ous, adjectivesu·per·stren·u·ous·ly, adverbsu·per·stren·u·ous·ness, nounun·stren·u·ous, adjectiveun·stren·u·ous·ly, adverbun·stren·u·ous·ness, noun

Synonyms for strenuous

Synonym study

3. See active.

Antonyms for strenuous

2. easy. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for strenuousness

Historical Examples of strenuousness

  • She felt the strenuousness of striving to keep abreast of Hattie.

    Emmy Lou

    George Madden Martin

  • In each reader the strenuousness had taken a different form.

    Emmy Lou

    George Madden Martin

  • I know now that the speed and strenuousness of it was telling upon all of us.

    The Message

    Alec John Dawson

  • He had brought back to the flat the strenuousness of business.

    The Innocents

    Sinclair Lewis

  • It was unnecessary, but I wished to present an appearance of strenuousness.

British Dictionary definitions for strenuousness



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

Word Origin and History for strenuousness



"characterized by great effort," 1590s, from Latin strenuus "active, vigorous, keen." Probably cognate with Greek strenes, strenos "keen, strong," strenos "arrogance, eager desire," Old English stierne "hard, severe, keen" (see stern (adj.)). Mocked by Ben Jonson as a pedantic neologism in "Poetaster" (1601). Sense of "requiring much energy" is first recorded 1670s. Related: Strenuously; strenuousness.

Online Etymology Dictionary, © 2010 Douglas Harper