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Synonyms

strenuous

American  
[stren-yoo-uhs] / ˈstrɛn ju əs /

adjective

  1. An image of the word strenuous as defined by characterized by vigorous exertion, as action, efforts, life, etc..

    characterized by vigorous exertion, as action, efforts, life, etc..

    a strenuous afternoon of hunting.

  2. demanding or requiring vigorous exertion; laborious.

    To think deeply is a strenuous task.

    Antonyms:
    easy
  3. vigorous, energetic, or zealously active.

    a strenuous person; a strenuous intellect.

    Synonyms:
    forceful

strenuous British  
/ ˈstrɛnjʊəs /

adjective

  1. requiring or involving the use of great energy or effort

  2. characterized by great activity, effort, or endeavour

"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

Synonym Usage

See active.

Other Word Forms


Etymology

Origin of strenuous

1590–1600; < Latin strēnuus; see -ous


Explanation

Something strenuous requires all your effort and strength, like a hard workout at the gym or carrying a backpack full of heavy books. Strenuous can also describe something done with lots of energy or force. If your boss asks you to do a strenuous task like carry a couch up a flight of stairs by yourself, and you refuse by jumping up and down in protest, you have a strenuous objection to her request. To remember how to spell it, remember that something strenuous requires the strength of two of you! That's why there are two u's in strenUoUs.

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Vocabulary lists containing strenuous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

While some research suggests they can modestly reduce muscle soreness and help preserve muscle function after strenuous exercise, results are far from consistent.

From Science Daily ● Oct. 14, 2026

These are films of strenuous work and daring vision, even when their execution doesn’t always match up with those big ideas.

From Salon ● Sep. 23, 2026

This was strenuous work, often yielding meager rewards.

From The Wall Street Journal ● Aug. 6, 2026

Those who must be outside are encouraged to wear lightweight, loose-fitting clothing and limit strenuous activities to the early morning or evening, he said.

From Los Angeles Times ● Jul. 30, 2026

Our program was strenuous: we trained from 8 A.M. until i P.M., broke for a shower and lunch, and then again from 2 P.M. to 4 P.M.

From "Long Walk to Freedom" by Nelson Mandela

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