fatigue

Great tiredness caused by hard work, physical effort, stress, or illness.

• She felt fatigue after the long walk.
• The illness caused weeks of severe fatigue.
• Drivers should stop and rest when fatigue affects their concentration.

How to use it: fatigue from something (He suffered fatigue from working long shifts.)

Similar words: tiredness, exhaustion

Common phrases: severe fatigue, mental fatigue, suffer from fatigue, physical fatigue

Weakening or breaking of a material because it has been bent, stretched, or pressed many times.

• Metal fatigue caused the crack.
• Engineers tested the bridge cables for fatigue.
• Repeated loading can lead to fatigue in steel parts.

Common phrases: metal fatigue, fatigue failure, fatigue testing

To make someone very tired through physical or mental effort.

• The long walk fatigued him.
• Repeated exercises fatigue the muscles.
• Too much detailed reading can fatigue your eyes.

Similar words: tire, exhaust, wear out

Opposites: refresh

Common phrases: fatigue someone, fatigue the muscles