1. not paying careful attention to details or surroundings
2. not following or practicing religious laws, customs, or rituals
Usage: religious context

Examples

• The nonobservant witness failed to notice the car’s license plate.
• She was too nonobservant to see the obvious clues around her.
• His nonobservant nature made him a poor detective.
• Many nonobservant Jews still celebrate major holidays culturally.
• The family became increasingly nonobservant over the generations.
• Despite being nonobservant, she respected others’ religious practices.