WordWeb Online

1. Continually complaining or faultfinding
   "nagging parents"
   - shrewish

1. Bother persistently with trivial complaints
   "She nags her husband all day long"
   - peck, hen-peck
    
2. Worry persistently
   "nagging concerns and doubts"
    
3. Remind or urge constantly
   "she nagged to take a vacation"

See also: ill-natured, nagger

Type of: complain, kick, kvetch [N. Amer], plain [archaic], quetch, remind, sound off, vex, worry

Encyclopedia: Nag