WordWeb Online

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

Derived forms: dopier

See also: asleep, dope, inattentive, stupid