WordWeb Online

1. (physics) possessing the ability to repel
   "a repulsive force"
    
2. Offensive to the mind
   "repulsive behaviour"; "the most repulsive character in recent novels";
   - abhorrent, detestable, obscene, repugnant, absonant [archaic]
    
3. So extremely ugly as to be terrifying
   "a repulsive mask";
   - hideous

See also: offensive, repulsion, repulsive force, ugly, unbeautiful

Antonym: attractive

Encyclopedia: Repulsive