lacking piety or reverence for a god lacking piety and reverence for a god lacking due respect or dutifulness; "impious toward one's parents"; "an undutiful son
Not pious; wanting piety; irreligious; irreverent; ungodly; profane; wanting in reverence for the Supreme Being; as, an impious deed; impious language
If you describe someone as impious, you mean that they show a lack of respect for religious things. = irreverent. lacking respect for religion or God impiety