1. not broken down by the digestive system
2. not fully understood, absorbed, or processed mentally
Usage: figurative

Examples

• The doctor found undigested food particles in the patient’s stomach.
• Undigested corn kernels are commonly visible in stool samples.
• The medication can cause undigested pills to pass through the system.
• His essay contained many undigested ideas from various sources.
• The student presented undigested information without proper analysis.
• She struggled with undigested concepts from the advanced physics course.