adj Suffering from or related to paranoia.
- He was diagnosed with a paranoid personality disorder.
- The patient became paranoid and believed that his neighbors were watching him.
- Doctors explained that paranoid thoughts can be a symptom of some illnesses.
adj Showing excessive, unwarranted suspicion or fear.
- Don't get paranoid — nobody's talking about you behind your back.
- The new security cameras made some staff feel paranoid about being watched constantly.
- He grew paranoid that every stranger on the train was following him.
noun A person affected by paranoia.
- The support group was designed for paranoids and their families.
- Doctors say a paranoid may believe that ordinary events are part of a plot.
- Her uncle, a lifelong paranoid, never let anyone else touch his post.