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Definitions from the Web

Indefatigable

Noun

Definition: A person who is tireless and cannot be easily exhausted.

Sample Sentence: The indefatigable researcher spent countless hours in the lab, determined to find a cure for the disease.

Adjective

Definition: Marked by tireless persistence and unyielding determination.

Sample Sentence: Despite facing numerous setbacks, Sarah's indefatigable spirit kept her going towards her goal of becoming a successful entrepreneur.

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