Simple Definition of impious
: feeling or showing a lack of respect for God : not pious
Full Definition of impious
: not pious : lacking in reverence or proper respect (as for God or one's parents) : irreverent
Examples of impious
He was fearful of seeming impious.
<an impious act that horrified their pious mother>
Origin of impious
Latin impius, from in- + pius pious
First Known Use: 1542
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