Obsessional
The Century Dictionary and Cyclopedia
Of or pertaining to a siege; obsidional.
Pertaining to or of the nature of obsession.
the GNU version of the Collaborative International Dictionary of English
adjective.
Persistently and abnormally preoccupied with some unreasonable idea.
Wiktionary, Creative Commons Attribution/Share-Alike License
adjective.
Marked by
obsession
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
characterized by or constituting an obsession