1. Hinder or prevent the progress or accomplishment of
   "The bad weather stymied their plans for an outdoor concert";
   - obstruct, blockade, block, hinder, stymie, embarrass [archaic]

1. A thwarting and distressing situation
   "The negotiations reached a stymy when neither side would compromise";
   - stymie
    
2. A situation in golf where an opponent's ball blocks the line between your ball and the hole
   "His perfect shot was ruined by an unfortunate stymy";
   - stymie

Derived forms: stymying

Type of: forbid, foreclose, forestall, obstacle, obstruction, position, preclude, prevent, situation