WordReference Random House Unabridged Dictionary of American English © 2017
frus•tra•tion  (fru strāshən),USA pronunciation n. 
  1. act of frustrating;
    state of being frustrated:the frustration of the president's efforts.
  2. an instance of being frustrated:to experience a series of frustrations before completing a project.
  3. something that frustrates, as an unresolved problem.
  4. Psychologya feeling of dissatisfaction, often accompanied by anxiety or depression, resulting from unfulfilled needs or unresolved problems.
  • Latin frustrātiōn- (stem of frustrātiō) deception, disappointment. See frustrate, -ion
  • late Middle English frustracioun 1425–75

WordReference Random House Learner's Dictionary of American English © 2017
frus•trate /ˈfrʌstreɪt/USA pronunciation   v. [+ object], -trat•ed, -trat•ing. 
  1. to make (plans, efforts, etc.) worthless or of no use;
    defeat:The steady rains frustrated our plans.
  2. to disappoint;
    thwart:If you give a child problems that are hard to solve, you may frustrate him.
frus•tra•tion, n. [uncountable] :feelings of frustration.[countable]took his frustrations out on his staff.

WordReference Random House Unabridged Dictionary of American English © 2017
frus•trate  (frustrāt),USA pronunciation v.,  -trat•ed, -trat•ing, adj. 
  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.

  1. to become frustrated:His trouble is that he frustrates much too easily.

  1. frustrated.
frustrat•er, n. 
frustrat•ing•ly, adv. 
frus•tra•tive  (frustrā tiv, -trə-),USA pronunciation adj. 
  • Latin frustrātus, past participle of frustrārī, verb, verbal derivative of frustrā in vain
  • late Middle English 1400–50
    • 1.See corresponding entry in Unabridged balk, foil, circumvent. See  thwart. 

Collins Concise English Dictionary © HarperCollins Publishers::

frustration /frʌˈstreɪʃən/ n
  1. the condition of being frustrated
  2. something that frustrates
  3. the prevention or hindering of a potentially satisfying activity
  4. the emotional reaction to such prevention that may involve aggression

'Frustration' also found in these entries:

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