paranoid adjective definition in Mental and emotional problems topic from the Oxford Advanced Learner's Dictionary

paranoid

 adjective: Mental and emotional problems topic
1 afraid or suspicious of other people and believing that they are trying to harm you, in a way that is not reasonable She's getting really paranoid about what other people say about her. 2 suffering from a mental illness in which you wrongly believe that other people are trying to harm you or that you are very important paranoid delusions paranoid schizophrenia a paranoid killer