paranoid
[adjective]
Synonyms:
- mentally ill, deluded, disturbed, manic, neurotic, paranoiac, psychotic
- suspicious, fearful, nervous, worried

[TahlilGaran] English Synonym Dictionary ▲

par‧a‧noid /ˈpærənɔɪd/ adjective

1. believing unreasonably that you cannot trust other people, or that they are trying to harm you or have a bad opinion of you
be/become/get paranoid
Malcolm got really paranoid, deciding that there was a conspiracy out to get him.
paranoid about
He has always been paranoid about his personal security.

2. medical suffering from a mental illness that makes you believe that other people are trying to harm you:
a patient suffering from paranoid schizophrenia

[TahlilGaran] Dictionary of Contemporary English ▲