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1. The act of preventing something by anticipating and disposing of it effectively
   - obviation, preclusion

1. Keep from happening or arising; make impossible
   "Your role in the projects forestalls your involvement in the competitive project";
   - prevent, foreclose, preclude, forbid
    
2. Act in advance of; deal with ahead of time
   - anticipate, foresee, counter

Derived forms: forestallings

Type of: act, bar, move, prevention

Encyclopedia: Forestalling