paranoia
UK: ˌpærəˈnɔɪə | US: ˌpærəˈnɔɪə
n. a mental condition characterized by delusions of persecution, unwarranted jealousy, or exaggerated self-importance
n. irrational suspicion or mistrust of others
The word "paranoia" originates from Greek "paranoia" (derangement, madness), combining "para-" (abnormal) and "-noia" (mind). It originally described any form of mental derangement but later narrowed to its modern sense of delusional distrust in the 19th century. The shift reflects the logic of "abnormal thinking" leading to irrational suspicion.
His paranoia made him believe everyone was plotting against him.
The politician’s paranoia about media bias grew over time.
She dismissed his accusations as mere paranoia.
Paranoia can be a symptom of certain mental health disorders.
The film’s protagonist descends into paranoia after discovering the conspiracy.