Synonyms of strenuous

strenuous

adjective

ˈstren-yə-wəs 

1

as in vigorous

marked by or uttered with forcefulness

parents who voiced strenuous objections to the new textbooks

Synonyms & Similar Words

• vigorous
• aggressive
• violent
• emphatic
• dynamic
• energetic
• forceful
• muscular
• insistent
• vehement
• assertive
• compelling
• clear
• marked
• striking
• decided
• pointed
• resounding
• full-blooded
• noticeable
• conspicuous
• categorical
• plain
• unequivocal
• unambiguous
• absolute
• impelling
• arresting

Antonyms & Near Antonyms

• mild
• weak
• unemphatic
• nonassertive
• ambiguous
• guarded
• hesitant
• equivocal
• nonemphatic
• uncompelling
• wishy-washy
• understated
• halting

2

as in difficult

requiring considerable physical or mental effort

a strenuous workout on the obstacle course

Synonyms & Similar Words

• difficult
• challenging
• rigorous
• tough
• demanding
• hard
• formidable
• heavy
• complicated
• arduous
• effortful
• rough
• rugged
• grueling
• laborious
• sweaty
• severe
• exhausting
• uphill
• toilsome
• painful
• backbreaking
• herculean
• tall
• testing
• exacting
• murderous
• intricate
• complex
• stiff
• serious
• killer
• hellacious
• problematic
• stressful
• annoying
• pick-and-shovel
• brutal
• moiling
• oppressive
• elusive
• involved
• tricky
• stubborn
• onerous
• grim
• Augean
• burdensome
• bruising
• troublesome
• abstract
• abstruse
• thorny
• insoluble
• labored
• strict
• recondite
• tight
• irksome
• hairy
• ticklish
• vexatious
• stringent
• knotty
• trying
• opaque
• bothersome
• taxing
• distressing
• cruel
• spiny
• grievous
• inhuman

Antonyms & Near Antonyms

• easy
• simple
• light
• soft
• undemanding
• effortless
• cheap
• mindless
• facile
• elementary
• manageable
• clear
• uncomplicated
• doable
• achievable
• gentle
• smooth
• painless
• relaxed
• soothing
• comforting
• friendly
• accessible
• user-friendly
• idiotproof

Synonym Chooser

How does the adjective strenuous contrast with its synonyms?

Some common synonyms of strenuous are energetic, lusty, nervous, and vigorous. While all these words mean "having or showing great vitality and force," strenuous suggests a preference for coping with the arduous or the challenging.

the strenuous life on an oil rig

When is energetic a more appropriate choice than strenuous?

The words energetic and strenuous are synonyms, but do differ in nuance. Specifically, energetic suggests a capacity for intense activity.

an energetic campaigner

In what contexts can lusty take the place of strenuous?

Although the words lusty and strenuous have much in common, lusty implies exuberant energy and capacity for enjoyment.

a lusty appetite for life

When could nervous be used to replace strenuous?

While in some cases nearly identical to strenuous, nervous suggests especially the forcibleness and sustained effectiveness resulting from mental vigor.

full of nervous energy

When might vigorous be a better fit than strenuous?

The meanings of vigorous and strenuous largely overlap; however, vigorous further implies showing no signs of depletion or diminishing of freshness or robustness.

as vigorous as a youth half his age

Example Sentences

Recent Examples of strenuous

How to visit Public access Because of its vastness and thick growth, most of the swamp is accessible only by helicopter or strenuous bushwhacking. — Charles Seabrook, AJC.com, 25 July 2026

Cadillac Summit Loop, Acadia National Park Cadillac Mountain is one of Acadia’s most popular places to watch the sunrise, and the short, paved Cadillac Summit Loop Trail lets visitors take in the view without a strenuous climb. — Ashley Lynch, Miami Herald, 24 July 2026

Worker Keyanna Campbell said in a declaration that on her production line, Black workers were singled out for the most strenuous tasks. — Ethan Baron, Mercury News, 24 July 2026

Still, patients need time to heal before returning to strenuous activity. — Angela Haupt, Time, 22 July 2026