WordWeb Online

1. Having great influence
   - powerful
    
2. Having or wielding force or authority
   "providing the ground soldier with increasingly potent weapons";
   - strong
    
3. Having a strong physiological or chemical effect
   "a potent toxin"; "potent liquor"; "a potent cup of tea";
   - strong, stiff
    
4. (of a male) capable of copulation
   - virile

See also: effective, effectiveness, effectual, efficacious, equipotent, fertile, influential, multipotent, potency, powerful, strength

Encyclopedia: Potent