Definition of hallucinate in English:



  • 1 Experience a seemingly real perception of something not actually present, typically as a result of a mental disorder or of taking drugs.

    ‘people sense themselves going mad and hallucinate about spiders’
    • ‘Caci began hallucinating, imagining Bailey there at the hospital with her, talking with her.’
    • ‘He noted that with enough sleep deprivation, some people can develop mood changes and can even begin to hallucinate, ‘all of which can lead to reduced quality of life.’’
    • ‘Findings is so deeply into a drug/alcohol induced stupor that he is not sure himself if he is dreaming, hallucinating or actually awake.’
    • ‘He looked up at the ceiling and began to hallucinate.’
    • ‘At times I was suffering mild paralysis in my legs, and I think I was beginning to hallucinate, but one of the other drivers in a Ferrari 550 ended up in intensive care!’
    • ‘It probably doesn't matter if you're actually hallucinating for those last two, though.’
    • ‘They became slaves to impulse, began to hallucinate, and, in a hypnotic trance, became completely vulnerable to the suggestions of leaders who might be thrown up.’
    • ‘My mouth became a dust bowl, complete with tumbleweed and mini sandstorms, and I actually started to hallucinate about a bottle of Evian.’
    • ‘By the time the victim begins hallucinating, turns gray-skinned, becomes paralyzed, and dies, it may be impossible to identify who did the dastardly deed, or when.’
    • ‘Then she began hallucinating and before losing consciousness she managed to grab the phone and press the redial button.’
    • ‘After a few nights of absolutely no sleep, some people begin hallucinating.’
    • ‘Immediately I am captivated by this picture-perfect creature before me, and I find myself wondering if he is even real or if I have begun to hallucinate.’
    • ‘He begins sniffing petrol, hallucinates at an open religious site and accidentally alights the community centre.’
    • ‘Sleep deprivation really kicked in, and I started to actually hallucinate!’
    • ‘The kid smiled and vanished, leaving a befuddled scientist to wonder if he'd begun hallucinating.’
    • ‘Because of expressive language difficulties, it may not be clear whether an individual with AD is indeed hallucinating or experiencing illusions or agnosias.’
    • ‘Welner explains that someone with a severe, brief, psychotic reaction, who has borderline personality disorder, might even hallucinate.’
    • ‘After awhile subjects become disoriented and begin to hallucinate uncontrollably.’
    • ‘I had a job as a technician, but I began to hallucinate more and have irrational thoughts.’
    • ‘By the time I actually made it to the clinic, I had been awake so long, and had been depriving myself of anything other than just water, that I was beginning to hallucinate.’
    have hallucinations, imagine things, see things, see visions, be delirious, have delirium tremens, fantasize, daydream, dream
    have a trip, trip, see pink elephants, have daymares
    View synonyms
    1. 1.1[with object]Experience a hallucination of (something)
      ‘I don't care if they're hallucinating purple snakes’
      • ‘During the day as Madison plays around the house I find myself hallucinating the bugs.’
      • ‘Chris, come in here - I need you to look at something and tell me whether I'm hallucinating it or not!’
      • ‘He hallucinates three suns in the sky and cringes under the piano.’
      • ‘When he sees an accident at the Heart Machine, he hallucinates the machine as a demon's mouth swallowing the workers.’
      • ‘Dr Rob, um, wanders about the place, not making a great deal of sense, and hallucinating an encounter with Julie Burchill in the garden.’
      • ‘Is there a name for the syndrome whereby one hallucinates obscure government ministers?’
      • ‘At the far end of Turnham Green I believe I'm hallucinating a mirage, until from the swinging sign before me emerge the words ‘Sandwich Shop’.’
      • ‘Awake for six days and six nights, she recalls hallucinating that a beautiful golden light was coming out of her head.’
      • ‘Severed from the familiar background o f the house in which she has lived for 70 years, she hallucinates her fears.’
      • ‘While watching this, I thought I must have hallucinated that burning image in my mind of star Gooding, Jr. having accepted an Oscar a few years back.’
      • ‘The parents of a woman of 22, so classified, reported that she was hallucinating a husband and children at the dinner table and engaging them in extended conversation.’
      • ‘You probably hallucinated your booming scene back home, because I've never heard of anybody from Victoria making it big, okay?’
      • ‘Several times I hallucinated Atlantic salmon beneath our hole.’
      • ‘Jim would go out every night during and that's when I got addicted to all manner of flu pills and I hallucinated cats on the ceiling.’
      • ‘As long as we're doing this, does anyone remember the episode where Buffy is stabbed by a demon and she hallucinates that she is in a mental ward and that the events of the last couple years were schizophrenic delusions.’
      • ‘In fact, I thought I might have hallucinated it entirely.’
      • ‘‘So basically, there is no chance your dog will be hallucinating rainbow cats,’ Mr Rochfort said.’
      • ‘You can travel for two or twenty stops on a London bus and find yourself hallucinating the taste of Jaffa Cakes.’
      • ‘Also from Miike, FanTasia screened Gozu, a film that begins with a crazed gangster who hallucinates that a tiny Chihuahua is ‘a trained Yakuza attack dog’ and smashes the hapless creature against a restaurant window.’
      • ‘When delirious crowds tore down the Berlin Wall in 1989 many hallucinated that a millennium of borderless freedom was at hand.’


Mid 17th century (in the sense be deceived, have illusions): from Latin hallucinat- gone astray in thought from the verb hallucinari, from Greek alussein be uneasy or distraught.