WordWeb Online

1. Having or revealing stupidity
   "a dopey answer"; "a dopey kid"
   - anserine, dopy, foolish, goosey, goosy, gooselike, jerky
    
2. Half asleep
   "it seemed a pity to disturb the dopey professor"
   - drowsy, drowsing, dozy, dopy
    
3. Showing lack of attention or boredom
   "the dopey congregation"
   - drowsy, oscitant, yawning, dopy

See also: asleep, dope, inattentive, stupid

Encyclopedia: Dopey