adj
obsessive
uhb-SEHS-ihv
adj
1
Showing an extreme, excessive focus on one thing, often in an unhealthy way.
"His obsessive attention to detail made him a great editor but a difficult roommate."
"She kept obsessive records of every penny she spent."
noun
1
A person who is fixated on something to an extreme degree.
"True crime obsessives flooded the forum with theories."
How to Use Obsessive
Learner’s notesIn plain EnglishFixated on something to an extreme or unhealthy degree.
Easily confused with
Common pairings
obsessive behaviour
obsessive fan
obsessive attention to detail
Word Forms
more obsessive comparative, obsessives plural, most obsessive superlative
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His _____ attention to detail made him a great editor but a difficult roommate.
Etymology
From "obsess" plus the adjective suffix "-ive".