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indefatigable
[
in-di-
fat
-i-g
uh
-b
uh
l
]
Origin
in·de·fat·i·ga·ble
/
ˌɪn
dɪˈfæt
ɪ
gə
bəl
/
Show Spelled
[
in-di-
fat
-i-g
uh
-b
uh
l
]
Show IPA
adjective
incapable of being tired out; not yielding to fatigue; untiring.
Origin:
1580–90;
<
Latin
indēfatīgābilis
untiring, equivalent to
in-
in-
3
+
dēfatīgā
(
re
) to tire out (
see
de-
,
fatigue
) +
-bilis
-ble
Related forms
in·de·fat·i·ga·bil·i·ty,
in·de·fat·i·ga·ble·ness,
noun
in·de·fat·i·ga·bly,
adverb
Synonyms
tireless, inexhaustible, persevering.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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indefatigable
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Indefatigable
is a TOEFL word you need to know.
So is
absolute
. Does it mean:
So is
sympathy
. Does it mean:
So is
corruption
. Does it mean:
free from imperfection; complete or pure; complete; not limited in any way
to present reasons for or against a thing; to contend in oral disagreement
harmony of or agreement in feeling; feelings or impulses of compassion
to join, combine, or incorporate so as to form a single whole or unit
lacking of integrity because of dishonest proceedings; bribery
the science of life or living matter in all its forms and phenomena with reference to origin, growth, reproduction, structure, and behavior
LEARN MORE TOEFL WORDS WITH WORD DYNAMO...
Collins
World English Dictionary
indefatigable
(ˌɪndɪˈfætɪɡəb
ə
l)
—
adj
unable to be tired out; unflagging
[C16: from Latin
indēfatīgābilis,
from
in-
1
+
dēfatīgāre,
from
fatīgāre
to tire]
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
Cite This Source
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
Cite This Source
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Matching Quote
"Man is distinguished, not only by his reason; but also by this singular passion from other animals ... which is a lust of the mind, that by a perseverance of delight in the continual and
indefatigable
generation of knowledge, exceeds the short vehemence of any carnal pleasure."
-Thomas Hobbes
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