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indefatigable [ in-di-fat -i-guh -buh l ] SHOW IPA
/ ˌɪn dɪˈfæt ɪ gə bəl / PHONETIC RESPELLING
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adjective
incapable of being tired out; not yielding to fatigue; untiring.
OTHER WORDS FOR indefatigable
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Origin of indefatigable 1580–90; <Latin
indēfatīgābilis untiring, equivalent to
in- in-3 +
dēfatīgā (
re ) to tire out (see
de- ,
fatigue ) +
-bilis -ble
OTHER WORDS FROM indefatigable in·de·fat·i·ga·bil·i·ty, in·de·fat·i·ga·ble·ness, noun in·de·fat·i·ga·bly, adverb
Words nearby indefatigable indecorous ,
indecorum ,
indeed ,
in deep ,
indef. ,
indefatigable ,
in default of ,
indefeasible ,
indefectible ,
indefensible ,
in defiance of
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Words related to indefatigable assiduous ,
diligent ,
dogged ,
energetic ,
inexhaustible ,
painstaking ,
relentless ,
tireless ,
unflagging ,
unwavering ,
vigorous ,
active ,
determined ,
hell-bent ,
industrious ,
ironclad ,
patient ,
persevering ,
persistent ,
pertinacious
How to use indefatigable in a sentence Unless you’re an indefatigable , insatiable scholar or fan, you wouldn’t want to read Highsmith’s diaries and notebooks in one sitting.
On the track, the indefatigable Czech was called the “Colossus,” set 17 world records up to 30K, and in the three-year build up to the Games he compiled a streak of 69 wins over 5,000m and 10,000m.
As the indefatigable , utterly lovable Mal, Archie Renaux brings the heart.
We’d also like to thank the indefatigable Jesse von Doom for helping us mind our schedules and keep our project running on time.
Because the man is an indefatigable scholar of the game — he studies it as hard as maybe any quarterback but Tom Brady.
“She would be my ‘boss lady,’” Crowe writes of the indefatigable Anne Marie.
Perhaps even the indefatigable John Kerry might be discouraged from more futile and dispiriting peace talks.
The exuberant, indefatigable Democrat from Oregon and the dour, taciturn Republican from New Hampshire made an odd couple.
Richard Ben Cramer explores the abduction of Olympic athlete Kari Swenson and the indefatigable sheriff who hunted her abductor.
Indefatigable in those two roles, he hankered after others, as well.
His labors were indefatigable , and his works possess great merit.
There was a successful fishing that year, and Jacob Worse was indefatigable and in high spirits.
Nothing is more remarkable than the sustained application and indefatigable will which they bring to bear on their studies.
She heard unpleasant stories touching him through Sylvana, her nurse, an indefatigable gossip-monger.
The experiments which the indefatigable seeker had undertaken on atmospheric electricity interested her as much as they did him.
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British Dictionary definitions for indefatigable
adjective
unable to be tired out; unflagging
Derived forms of indefatigable indefatigability or indefatigableness , noun indefatigably , adverb Word Origin for indefatigable C16: from Latin indēfatīgābilis, from in- 1 + dēfatīgāre, from fatīgāre to tire
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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