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English definition of “paranoid”

paranoid

adjective uk   /ˈpær.ən.ɔɪd/ us    /ˈper.ə.nɔɪd/
feeling extremely nervous and worried because you believe that other people do not like you or are trying to harm you: He started feeling paranoid and was convinced his boss was going to fire him. specialized psychology suffering from a mental illness in which you believe that other people are trying to harm you: He was diagnosed as a paranoid schizophrenic. paranoid delusions
(Definition of paranoid from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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