Pronunciation: (kum-pul'siv), [key]
1. compelling; compulsory.
a. pertaining to, characterized by, or involving compulsion: a compulsive desire to cry.
b. governed by an obsessive need to conform, be scrupulous, etc., coupled with an inability to express positive emotions.
Psychol.a person whose behavior is governed by a compulsion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.