frus·trate

[fruhs-treyt] verb, frus·trat·ed, frus·trat·ing, adjective
verb (used with object)
1.
to make (plans, efforts, etc.) worthless or of no avail; defeat; nullify: The student's indifference frustrated the teacher's efforts to help him.
2.
to disappoint or thwart (a person): a talented woman whom life had frustrated.
verb (used without object)
3.
to become frustrated: His trouble is that he frustrates much too easily.
adjective

Origin:
1400–50; late Middle English < Latin frustrātus, past participle of frustrārī, verbal derivative of frustrā in vain

frus·trat·er, noun
frus·trat·ing·ly, adverb
frus·tra·tive [fruhs-trey-tiv, -truh-] , adjective
re·frus·trate, verb (used with object), re·frus·trat·ed, re·frus·trat·ing.


1. balk, foil, circumvent. See thwart.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
frustrate (frʌˈstreɪt) [Click for IPA pronunciation guide]
 
vb
1.  to hinder or prevent (the efforts, plans, or desires) of; thwart
2.  to upset, agitate, or tire: her constant complaints began to frustrate him
 
adj
3.  archaic frustrated or thwarted; baffled
 
[C15: from Latin frustrāre to cheat, from frustrā in error]
 
frus'trater
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Frustrate is a TOEFL word you need to know.
So is transformation. Does it mean:
the act or process of transforming; change in form, appearance, nature, or character
to regard as resulting from a specified cause; consider as caused by something indicated
Etymonline
Word Origin & History

frustrate
mid-15c., from L. frustratus, pp. of frustrari "to deceive, disappoint, frustrate," from frustra (adv.) "in vain, in error," related to fraus "injury, harm." Related: Frustrated; frustrating.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
But the omission of certain staples may frustrate us.
The same should be stopped on its track to frustrate the evil design.
It's the narrative structure that would frustrate younger readers.
Arraignment delays are costly to taxpayers and frustrate law enforcement.
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