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paranoia

American  
[par-uh-noi-uh] / ˌpær əˈnɔɪ ə /
Archaic, paranoea

noun

  1. Psychiatry. a mental disorder characterized by systematized delusions and the projection of personal conflicts, which are ascribed to the supposed hostility of others, sometimes progressing to disturbances of consciousness and aggressive acts believed to be performed in self-defense or as a mission.

  2. baseless or excessive suspicion of the motives of others.


paranoia British  
/ ˌpærəˈnɔɪɪk, ˌpærəˈnəʊɪk, ˌpærəˈnɔɪə /

noun

  1. a form of schizophrenia characterized by a slowly progressive deterioration of the personality, involving delusions and often hallucinations

  2. a mental disorder characterized by any of several types of delusions, in which the personality otherwise remains relatively intact

  3. informal intense fear or suspicion, esp when unfounded

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

paranoia Cultural  
  1. A form of psychosis marked by delusions of persecution and of grandeur. One who suffers from paranoia is paranoid.


Usage

What does paranoia mean? Paranoia is a mental disorder characterized by delusions and feelings of extreme distrust, suspicion, and being targeted by others.Paranoia is also commonly used more generally to mean extreme suspicion or irrational distrust of others. It’s important to understand that while paranoia is used generally outside of its psychiatric usage in a way that makes it seem less serious, having paranoia is a major symptom of disorders like paranoid schizophrenia and paranoid personality disorder.The adjective paranoid can be used to describe a person, action, or thought that exhibits paranoia.A rare alternate spelling for the word is paranoea.Example: Locking my doors at night isn’t a sign of paranoia—it just means I’m being cautious.

Discover More

In popular terminology, a “paranoid” personality is characterized by suspicion and distrust of others; a tendency to look for hidden meaning behind other people's actions; argumentativeness; complaining; low tolerance for criticism; and a constant display of one's own talents, accomplishments, independence, and rationality.

Other Word Forms

  • paranoiac adjective

Etymology

Origin of paranoia

First recorded in 1805–15; from New Latin, from Greek paránoia “madness,” from paráno(os) “demented” (equivalent to para- 1 + nous ) + -ia -ia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On the most fundamental level, the demand for privacy is not about paranoia or fear.

From Salon

The action films are likewise both packed with paranoia and betrayal.

From Los Angeles Times

“This time it was real paranoia. So, neither of you has been on this road?”

From Literature

Is it a case of paranoia thanks to new motherhood?

From Los Angeles Times

"I had paranoia, delusions. I had my first full-on episode when I was 15."

From BBC