Meaning of frustrate

frus•trate

Pronunciation: (frus'trāt), [key]
— v., adj. -trat•ed, -trat•ing,
—v.t.
  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.
—v.i.
  1. to become frustrated: His trouble is that he frustrates much too easily.
—adj.
  1. frustrated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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