barefaced
/ˈbærˌfeɪsd/ BAY-fee-sed
Definitions
1. adjective
done or done openly and without shame, especially about something that is considered to be wrong or unpleasant
“The politician was accused of lying barefaced to the public about his financial dealings.”
2. noun
a person who speaks or behaves in this way
“He’s a barefaced liar and should be ashamed of himself.”