(Med.) Affected with paranoia; as, a paranoid schizophrenic.
Synonyms:paranoiac.
2.
Suffering from delusions of being persecuted by the conspiratorial actions of others; having an unwarranted suspicion of the motives of others; used loosely in a negative sense, not as a medical term; as, just because you're paranoid doesn't mean they are not out to get you. (Colloq.)
... said. "Paranoid?" He had always thought Senator Lefferts was slightly on the batty side, and the idea of real paranoia didn't come as too much of a surprise. After all, when a man was batty to start out with ... and he even looked like a vampire, ... — Supermind • Gordon Randall Garrett