恥知らず

(1)feeling no shame; "a shameless imposter"; "an unblushing apologist for fascism"

(2)恥を全く感じない

(3)unrestrained by convention or propriety; "an audacious trick to pull"; "a barefaced hypocrite"; "the most bodacious display of tourism this side of Anaheim"- Los Angeles Times; "bald-faced lies"; "brazen arrogance"; "the modern world with its quick material successes and insolent belief in the boundless possibilities of progress"- Bertrand Russell

(4)因習または礼儀により抑制されない

(1)