WordWeb Online

1. The exposure of an impostor or a fraud
   - exposé

1. Reveal the true nature of
   "The journal article unmasked the corrupt politician";
   - uncloak
    
2. Take the mask off
   "unmask the imposter"

Derived forms: unmaskings

Type of: debunk, expose, exposure, uncover

Antonym: mask

Encyclopedia: Unmasking