Pronunciation: (pī'us),[key] —adj. 1. having or showing a dutiful spirit of reverence for God or an earnest wish to fulfill religious obligations.
2. characterized by a hypocritical concern with virtue or religious devotion; sanctimonious.
3. practiced or used in the name of real or pretended religious motives, or for some ostensibly good object; falsely earnest or sincere: a pious deception. 4. of or pertaining to religious devotion; sacred rather than secular: pious literature. 5. having or showing appropriate respect or regard for parents or others.