• synonyms


verb (used with object), frus·trat·ed, frus·trat·ing.
  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.
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verb (used without object), frus·trat·ed, frus·trat·ing.
  1. to become frustrated: His trouble is that he frustrates much too easily.
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  1. Obsolete. frustrated.
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Origin of frustrate

1400–50; late Middle English < Latin frustrātus, past participle of frustrārī, verbal derivative of frustrā in vain
Related formsfrus·trat·er, nounfrus·trat·ing·ly, adverbfrus·tra·tive [fruhs-trey-tiv, -truh-] /ˈfrʌs treɪ tɪv, -trə-/, adjectivere·frus·trate, verb (used with object), re·frus·trat·ed, re·frus·trat·ing.


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for frustratingly


verb (tr)
  1. to hinder or prevent (the efforts, plans, or desires) of; thwart
  2. to upset, agitate, or tireher constant complaints began to frustrate him
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  1. archaic frustrated or thwarted; baffled
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Derived Formsfrustrater, noun

Word Origin

C15: from Latin frustrāre to cheat, from frustrā in error
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for frustratingly



mid-15c., from Latin frustratus, past participle of frustrari "to deceive, disappoint, frustrate," from frustra (adv.) "in vain, in error," related to fraus "injury, harm" (see fraud). Related: Frustrated; frustrating.

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Online Etymology Dictionary, © 2010 Douglas Harper