indefatigable
Use Indefatigable in a sentence
dɪˈfæt adjective
incapable of being tired out; not yielding to fatigue; untiring.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To indefatigable
Collins
World English Dictionary
indefatigable (ˌɪndɪˈfætɪɡəbəl) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —adj | |
| unable to be tired out; unflagging | |
| [C16: from Latin indēfatīgābilis, from | |
| indefatiga'bility | |
| —n | |
| inde'fatigableness | |
| —n | |
| inde'fatigably | |
| —adv | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Indefatigable
is a TOEFL word you need to know.
So is frustrate. Does it mean:
| prominent or conspicuous: |
| to disappoint or thwart |
Etymonline
Word Origin & History
indefatigable
1586 (implied in indefatigably), from Fr. indefatigable (15c.), from L. indefatigabilis "that cannot be wearied," from in- "not" + defatigare "to tire out," from de- "utterly, down, away" + fatigare "to weary" (see fatigue).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
His only delight was in exercises of piety and in his studies, in which he employed his whole time with indefatigable application.
He is an adventurous and indefatigable traveler as well as a brilliant explorer of arcane problems and archives.
She was indefatigable, which made her abrupt exit even harder to take.
His work and his indefatigable spirit will be deeply missed, but his legacy will never be forgotten.
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