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indefatigability
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. 2013.
Cite This Source
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Link To
indefatigability
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
Relevant Questions
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00:10
Indefatigability
is always a great word to know.
So is
quincunx
. Does it mean:
So is
callithumpian
. Does it mean:
So is
ort
. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a gadget; dingus; thingumbob.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a stew of meat, vegetables, potatoes, etc.
a scrap or morsel of food left at a meal.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
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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Synonyms
pertinacious
painstaking
industrious
persevering
persistent
relentless
determined
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