Definition of paranoia in US English:

paranoia

noun

  • 1A mental condition characterized by delusions of persecution, unwarranted jealousy, or exaggerated self-importance, typically elaborated into an organized system. It may be an aspect of chronic personality disorder, of drug abuse, or of a serious condition such as schizophrenia in which the person loses touch with reality.

    • ‘Mr Crosland said Day's use of amphetamines had caused delusions and paranoia.’
    • ‘He said people suffering from paranoia are known to have a capacity to be very dangerous.’
    • ‘The most common symptom of paranoia is the belief that someone or something is persecuting you.’
    • ‘He spent some time in America and there he began to show signs of paranoia and other aspects of mental disturbance.’
    • ‘Twenty years of turmoil followed; five breakdowns including episodes of paranoia and delusions.’
    persecution complex, delusions, obsession, megalomania, monomania
    View synonyms
    1. 1.1 Suspicion and mistrust of people or their actions without evidence or justification.
      ‘the global paranoia about hackers and viruses’
      • ‘The film succeeds because we are made to feel a little bit of the confusion, paranoia and madness of war.’
      • ‘Who expects to find an aging Spanish nanny at the center of a tale of religious hysteria, paranoia, murder and revenge?’
      • ‘I almost thought I could see a dark shape through the veil of flames, but I passed it off as paranoia.’
      • ‘America's predominant mental state was one of anticommunist paranoia.’
      • ‘Face it, our information is safer when we have a healthy dose of paranoia regarding it.’
      • ‘On the space station that orbits Solaris, paranoia has evolved into a degree of mistrust, bordering on terror.’
      • ‘Let it never be said that the Left doesn't have its fair share of paranoia and persecution complexes.’
      • ‘When two young men are driving along the highway one evening, they are flagged down by a cop and anxiety soon turns to paranoia.’
      • ‘I think paranoia is only useful if you're in combat and need to be constantly ready to kill.’
      • ‘This is a city prone to paranoia at the best of times, as personified by that quintessential New Yorker, Woody Allen.’
      • ‘Setting aside suspicion and paranoia, surely highways officials must have a plan for the future of this area.’
      • ‘She looked like she was on the edge of paranoia from being watched as though she was on display.’
      • ‘The atmosphere of universal suspicion and vigilance of the Terror years was not irrational paranoia.’
      • ‘Well it was too late now and my jealousy and paranoia grew on one fateful Friday afternoon.’
      • ‘She felt paranoia and panic rising up to claim her, but she wouldn't let that happen.’
      • ‘It is a tale of psychological terror and at its heart are paranoia and fear.’
      • ‘In any organism, person, organisation, or even country stress leads to paranoia.’
      • ‘The paranoia of a parent who's lost their child is easy to empathise with and makes gripping drama.’
      • ‘In many cases, these suspicions may be so unreasonable as to border on paranoia.’
      • ‘Live in a state of perpetual paranoia and always know what your competitors are doing.’

Origin

Early 19th century: modern Latin, from Greek, from paranoos ‘distracted’, from para ‘irregular’ + noos ‘mind’.

Pronunciation

paranoia

/ˌpɛrəˈnɔɪə//ˌperəˈnoiə/