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Verb: disorientate  dis'o-ree-un,teyt
  1. Cause to lose one's bearings or sense of direction; confuse
    "The sudden bright lights disorientated the driver";
    - disorient

Derived forms: disorientated, disorientates, disorientating

Type of: baffle, beat, bedevil, befuddle, bewilder, confound, confuse, discombobulate [informal], dumbfound, flummox, fox, fuddle, get, gravel, mystify, nonplus, perplex, pose, puzzle, stick, stupefy, throw, vex