Wordnet 3.0
ADVERB (1)
1. 
 without shame; 
- Example: "he unashamedly abandoned the project when he realized he would not gain from it"[syn: unashamedly, shamelessly, barefacedly]
The Collaborative International Dictionary of English v.0.48:
Barefacedly \Bare"faced`ly\, adv.
   Openly; shamelessly. --Locke.
   [1913 Webster]
WordNet (r) 3.0 (2006):
barefacedly
    adv 1: without shame; "he unashamedly abandoned the project when
           he realized he would not gain from it" [syn:
           unashamedly, shamelessly, barefacedly] [ant:
           ashamedly]