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Verb: frustrate  'frús,treyt [N. Amer], frú'streyt [Brit]
  1. Hinder or prevent (the efforts, plans, or desires) of
    "What ultimately frustrated every challenger was Ruth's amazing September surge";
    - thwart, queer [informal], spoil, scotch, foil, cross, baffle, bilk [informal], scupper [informal]
  2. Harass persistently in cruel or annoying way
    "The children frustrated the stuttering teacher";
    - torment, rag, bedevil, crucify, dun
  3. Deprive of courage or hope; take away hope from; cause to feel discouraged
    - discourage

Derived forms: frustrated, frustrates, frustrating

Type of: beset, chevvy [non-standard], chevy, chivvy, chivy, forbid, foreclose, forestall, harass, harry, hassle [informal], molest, plague, preclude, prevent, provoke

Encyclopedia: Frustrate