
Strenuous
Physical Demands
Used when describing tasks that require a lot of physical effort and might exhaust you.

Climbing the mountain was a strenuous activity.
Intensity Emphasis
Highlights the extreme level of effort or energy put into an action or task.

Preparing for the performance was a strenuous process.
Mental Exertion
Can also refer to tasks that require intense mental effort, not just physical.

Solving the advanced puzzles was a strenuous challenge.
Compare with
ArduousChallengeDemandExhaustExhaustiveGruelLaboriousTaxTire
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