I. -ˈsesiv, -sēv also -səv adjective
Etymology: obsess ion + -ive
1.
a. : tending to provoke obsession
b. : excessive in some quality (as interest, concern, urgency) to or nearly to the point of abnormality
an obsessive nurse
our obsessive need for quick solutions — A.E.Stevenson b.1900
2. : relating to, characterized by, or constituting obsession
• ob·ses·sive·ly -sə̇vlē, -li adverb
• ob·ses·sive·ness -sivnə̇s, -sēv- also -səv- noun -es
II. noun
( -s )
: a person that is obsessed : an obsessional neurotic