1. Of or pertaining to piety; exhibiting piety; reverential; dutiful; religious; devout; godly. Pious hearts. . Pious poetry. . Where was the martial brother's pious care? (pope)
2. Practiced under the pretext of religion; prompted by mistaken piety; as, pious errors; pious frauds.
Synonym: Godly, devout, religious, righteous.
Origin: L. Pius: cf. F. Pieux.