1 compelling.
2 resulting or acting from, or as if from, compulsion (a compulsive gambler).
3 Psychol. resulting or acting from compulsion against one's conscious wishes.
4 irresistible (compulsive entertainment).
Derivatives:
compulsively adv. compulsiveness n.
Etymology: med.L compulsivus (as compel)
Useful english dictionary. 2012.