strenuous

/stɹˈɛnjuːəs/

/ˈstɹɛnjuəs/

strenuous

characterized by or performed with much energy or force

taxing to the utmost; testing powers of endurance

synonyms : arduous

Examples

1. He avoids strenuous exercise due to his heart condition.

2. I prefer jogging over running because it's less strenuous.

3. They feel like something the cat dragged in after a strenuous workout, sore and fatigued.

4. Third: Avoid strenuous outdoor activity.