If you need a word meaning shameless, brazen, or obvious, use the phrasal adjective bald-faced (and don’t forget the hyphen). Of course, this adjective can also be used to describe an unadorned and shaven face. The adjective boldface (not boldfaced) refers to text that looks like this. It has no other uses.
FOX News is no stranger to telling bald-faced lies. [Aiken Area Progressive]
While “Untouchable” will not change the course of cinema, it is a story that spells “cautionary” in boldface and all-caps. [Chicago Tribune]
If you encounter a bald-faced hornet nest next summer, have no fear. [Ohio Birds and Biodiversity]
Boldface type highlights important symptoms and signs. [Sinauer.com]