— obsessively , adv. — obsessiveness , n.
/euhb ses"iv/ , adj.
1. being, pertaining to, or resembling an obsession: an obsessive fear of illness.
2. causing an obsession.
3. excessive, esp. extremely so.
n.
4. someone who has an obsession or obsessions; a person who thinks or behaves in an obsessive manner.
[ 1910-15; OBSESS(ION) + -IVE ]