[ fuh-teegd ]
/ fəˈtigd /
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tired; wearied.
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Origin of fatigued

First recorded in 1785–95; fatigue + -ed2

synonym study for fatigued

See tired1.


un·fa·tigued, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023


What does fatigued mean?

Fatigued means physically or mentally tired, as in The fatigued construction workers decided to finish work for the day. 

Fatigued is a synonym of words like tired, exhausted, and weary—all words to describe a person who is out of energy. Fatigued describes a state in which you desperately want to sleep or rest.

Fatigued comes from the noun fatigue, which means weariness or lethargy.

If you are unfatigued, you are not fatigued, that is, you have energy.

Example: I took a nap after work because I was fatigued from unloading trucks all day. 

Where does fatigued come from?

The first records of the word fatigued come from around 1785. It combines the noun fatigue with the suffix -ed.

Often, fatigued is used to emphasize that you are tired to the point of nearly collapsing from exhaustion. People with physical jobs that require them to be highly active, such as professional athletes and construction workers, are likely to be described as fatigued because their job requires so much from them physically.

You can be fatigued because of mental work, too, though. If you’ve spent hours a day for several weeks preparing for a college entrance exam, you might be mentally fatigued. Many students feel fatigued after taking a three-hour entrance exam.

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What are some other forms related to fatigued?

  • unfatigued (adjective)

What are some synonyms for fatigued?

What are some words that share a root or word element with fatigued

What are some words that often get used in discussing fatigued?

How is fatigued used in real life?

Fatigued is a word people use to describe someone who is extremely tired.

Try using fatigued!

Is fatigued used correctly in the following sentence?

After a good night’s sleep, Andre was completely fatigued and full of energy.

How to use fatigued in a sentence