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illustration Indefatigable



Part of speech: adjective


Incapable of becoming fatigued



Examples of Indefatigable in a sentence

"It was his indefatigable energy that made him a natural leader for our difficult cause."

"He’s an indefatigable boss, tirelessly working to better the organization."

About Indefatigable

One thing that many people don't know about the hard-charging, indefatigable British Prime Minister Winston Churchill, who was instrumental in defending Britain and helping to win the war, is that he was a prolific writer who won the Nobel Prize for Literature.

Did you Know?

Indefatigable comes from the Latin root words in (not) and defatigo (to tire out).

illustration Indefatigable

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