devout 11 antonyms and opposites of devout. Adj — Deeply religious and committed to one's faith. Synonyms for devout Allah-fearing devoutful frum godfearing inward heavenly-minded godly observant pious piteous practicing religionary sainted sanctimonious Antonyms for devout impious indevout inobservant lapsed nonobservant nonpracticing unobservant unobserving undevout ungodly unpious ← Back to the full definition of devout