Devout/dɪˈvaʊt/ Definition 1 of 2Pro Tip 1/3Emotional Depth Suggests sincere, heartfelt engagement with religious beliefs or practices. During the service, her devout expression spoke volumes. Pro Tip 2/3Not Casual 'Devout' indicates a level of dedication beyond casual belief. Her devout lifestyle was evident in her daily rituals. Pro Tip 3/3Cultural Respect When describing someone as 'devout,' be culturally sensitive to religious diversity. He's a devout Buddhist, visiting the temple every week.