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Definition of tireless

tireless

/ˈtaɪərləs/
tire · less
Adverb:tirelessly
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tireless Lexical Profile

tireless Game Scores & Validity

• adjective

1

Having or showing great effort, energy, or persistence without becoming weary or stopping.

Example

"The community honored her for her tireless dedication to improving local public schools."

Synonyms
View all synonyms for tireless
Antonyms
View all antonyms for tireless

• Rhymes for tireless

• Nearby Words

tired
tiredly
tiredness
tireless
tirelessly
tirelessness
tiremaker

Word Origin & Etymology

First recorded in the late 16th century, formed from the verb 'tire' (from Old English 'tiorian', meaning to fail or become exhausted) combined with the privative suffix '-less'.

Cite this Entry

Wordmom. (2026). Definition of Tireless. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/tireless
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