strenuous

adjective

stren·​u·​ous ˈstren-yə-wəs 

1

a

: vigorously active : energetic

b

: fervent, zealous

his most strenuous supporters

2

: marked by or calling for energy or stamina : arduous

a strenuous hike

strenuosity

ˌstren-yə-ˈwä-sə-tē 

noun

strenuously

ˈstren-yə-wəs-lē 

adverb

strenuousness noun

Synonyms

• aggressive
• assertive
• dynamic
• emphatic
• energetic
• forceful
• full-blooded
• muscular
• resounding
• vehement
• vigorous
• violent

Choose the Right Synonym for strenuous

vigorous, energetic, strenuous, lusty, nervous mean having or showing great vitality and force.

vigorous further implies showing no signs of depletion or diminishing of freshness or robustness.

as vigorous as a youth half his age

energetic suggests a capacity for intense activity.

an energetic campaigner

strenuous suggests a preference for coping with the arduous or the challenging.

the strenuous life on an oil rig

lusty implies exuberant energy and capacity for enjoyment.

a lusty appetite for life

nervous suggests especially the forcibleness and sustained effectiveness resulting from mental vigor.

full of nervous energy

Examples of strenuous in a Sentence

Avoid all strenuous exercise until the sprain heals.

Today has been a very strenuous day.

The proposal has faced strenuous opposition.

Recent Examples on the Web

For much of the 20th century, many doctors believed that strenuous exercise would more likely cause heart attacks than prevent them. —Danielle Friedman, New York Times, 15 Jan. 2025

The physical strain of clearing snow and hacking away at ice from your walkway, driveway, cars, and other surfaces can lead to a variety of aches and pains, thereby turning a simple task into a strenuous activity. —Toni Sutton, People.com, 11 Jan. 2025

Do not do strenuous physical activity while outdoors and keep time outside short. —Jeanine Santucci, USA TODAY, 8 Jan. 2025

During a 2018 interview with CNN, Schwarzenegger recalled that Bush would invite him to Camp David once a month, and the pair would take part in a series of strenuous physical activities. —Ashley Hume, Fox News, 6 Jan. 2025

Word History

Etymology

Latin strenuus

First Known Use

1599, in the meaning defined at sense 1a

Kids Definition

strenuous

adjective

stren·​u·​ous ˈstren-yə-wəs 

1

a

: very active : energetic

leads a strenuous life

b

: fervent, zealous

strenuous protest

2

: showing or requiring great energy

strenuous tasks

strenuously adverb