1. Someone who leaves suddenly and secretly in order to escape and to hide: "The police followed the trail of the absconder which led to the river."
2. Those who get away in a sudden and secret manner; especially, to avoid capture and legal prosecution: "The robbery absconders took off with the money just before the police arrived at the bank where the money was stolen."

"While trying to solve the mystery, the police list of absconders was very long."