Shameless; without proper shame in the face of holy reproof. Hebrew qasheh panim (hard of face) and Greek anaides (without shame) name the disposition. Ezekiel 2:4 records God's commissioning of the prophet to a people who were exactly this: For they are impudent children and stiffhearted. I do send thee unto them; and thou shalt say unto them, Thus saith the Lord GOD. Ezekiel 3:7 reinforces: For all the house of Israel are impudent and hardhearted. Proverbs 7:13 describes the harlot taking the young man with an impudent face. The impudent heart is past blushing — it has trained itself out of the natural shame-response that would otherwise check it from sin. The cure is the recovery of biblical shame: were they ashamed when they had committed abomination? nay, they were not at all ashamed, neither could they blush: therefore shall they fall (Jer 6:15). The Christian recovers the capacity to be ashamed of sin and to refuse it for the sake of the One whose holiness defines the standard.