Arduous: meaning, definitions and examples

Use when describing something that requires a lot of effort and is very tiring over a long period.

• The journey through the mountains was arduous
• Completing the marathon was an arduous task

General term for something that is hard to do, understand, or deal with, without the specific nuance of effort or duration.

• The math problem was difficult
• It was difficult to make a decision

Commonly used to describe situations, tasks, or people who show resilience and strength; can have a slightly more informal tone.

• She had a tough time during the divorce
• The football match was really tough

Fits contexts where the task or situation requires a lot from someone, whether it's effort, attention, or skill.

• His job is very demanding
• Preparing for the exams was a demanding process

Appropriate for situations that stimulate someone to be resourceful, analytical, and creative, often in a positive or neutral sense.

• The new project at work is quite challenging
• I found learning a new language to be challenging but rewarding

Best used for physical tasks that require a lot of strength and energy.

• Lifting those heavy boxes was strenuous work
• He had a strenuous exercise routine