The quality of being shameless and extremely bold in a rude or disrespectful way.
From 'brazenfaced' + '-ness' (noun suffix forming quality/state). A compound construction describing the characteristic of shameless boldness.
The brazenfacedness of a lie detector scammer is what makes them so dangerous — they show absolutely no signs of the guilt they should feel!
Complete word intelligence in one call. Free tier — 50 lookups/day.