Strenuous

Requiring a lot of effort and energy, like exercising hard or doing a tough workout.

Examples

• Running a marathon is a strenuous activity that tests both the physical endurance and mental strength of the participants, pushing them to their limits as they strive to cross the finish line.
• During our science project, we discovered that building a model volcano required strenuous effort, as we had to gather materials, create the structure, and ensure it would erupt perfectly for our presentation.
• While training for the school basketball team, I found that the strenuous drills helped improve my skills, but they also made me appreciate the importance of teamwork and perseverance in achieving our goals.

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Antonyms