unblushing
1. [ adjective ] feeling no shame
Synonyms: shameless
Examples:

"a shameless imposter" "an unblushing apologist for fascism"

Related terms: unashamed
Similar spelling:   unblushingly
  unblushinghly
  unflinching
  unpleasing
  unflagging
  unblinking
  unobliging
  unblinkingly
  unploughed