Antonyms of adj pious

1 sense of pious

Sense 1
pious (vs. impious) -- (having or showing or expressing reverence for a deity; "pious readings")

impious (vs. pious) -- (lacking piety or reverence for a god)
        => godless, irreverent -- (not revering god)

Similarity of adj pious

1 sense of pious

Sense 1
pious (vs. impious) -- (having or showing or expressing reverence for a deity; "pious readings")
       => devotional -- (relating to worship; "a devotional exercise")
       => godly, reverent, worshipful -- (showing great reverence for god; "a godly man"; "leading a godly life")
       => holier-than-thou, pietistic, pietistical, pharisaic, pharisaical, sanctimonious, self-righteous -- (excessively or hypocritically pious; "a sickening sanctimonious smile")
       => prayerful -- (disposed to pray or appearing to pray)
          Also See-> religious#2; sacred#1; unworldly#1; virtuous#1