C2 noun /ˌpærəˈnɔɪæk/
paranoiac
personne paranoïaque
Meaning
A person who suffers from paranoia or exhibits extreme, irrational distrust and suspicion.
Example
The paranoiac refused to leave his house, fearing everyone was against him.
La personne paranoïaque a refusé de quitter sa maison, craignant que tout le monde soit contre lui.