WordWeb Online

1. Resist or confront with resistance
   "The politician defied public opinion";
   - withstand, hold, hold up
    
2. Elude, especially in a baffling way
   "This behaviour defies explanation";
   - resist, refuse
    
3. Challenge
   "I defy you!";
   - dare

Derived forms: defying, defied, defies

Type of: challenge, dispute [archaic], elude, escape, hold out, resist, stand firm, withstand

Antonym: lend oneself

Encyclopedia: Defy