[әb'seʃәnәl]
摆脱不了的

[ adj ]
characterized by or constituting an obsession
<adj.all>
the obsessional character of his responseobsessive gambling

obsessional \obsessional\ obsessive \obsessive\adj.
Persistently and abnormally preoccupied with some
unreasonable idea.

Syn: compulsive.
[WordNet 1.5]