1. a person who skulks; one who moves stealthily or lurks about

Examples

• The security guard spotted a sculker hiding behind the building.
• She felt like a sculker as she crept through the dark hallway.
• The sculker waited in the shadows until everyone had left.
• Police were searching for the sculker who had been seen near the school.
• He was no ordinary thief but a careful sculker who avoided detection.
• The sculker moved silently between the parked cars.