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English definition of “obsessive”

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obsessive

adjective uk   /əbˈses.ɪv/ ( also obsessional ) us  
C2 thinking about something or someone, or doing something, too much or all the time: He's obsessive about punctuality. like, typical of, or caused by an obsession: obsessive secrecy obsessional behaviour
obsessively
adverb uk   /-li/ ( also obsessionally ) us  

obsessive

noun [C] uk   /əbˈses.ɪv/ us  
an obsessive person
(Definition of obsessive from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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