Definition of demented in English:

demented

adjective

  • 1Suffering from dementia.

    • ‘Less severely demented patients and black and Hispanic patients were more likely to stay in the home.’
    • ‘Until a week ago, he was demented, rigid, incontinent, unable to talk, swallow or blink his eyes.’
    • ‘The diagnosis of an independent depressive disorder becomes difficult in the demented patient.’
    • ‘Whenever demented patients travel, it is safe to assume their confusion will worsen for the duration of the trip.’
    • ‘At this point you may be asking, why it is important to train a workforce that will be experts in taking care of demented residents.’
    • ‘Caretakers and physicians often project sensations of hunger and thirst onto severely demented patients with poor oral intake.’
    • ‘Health care professionals commonly rely on feeding tubes to supply nutrition to these severely demented patients.’
    • ‘But, it could be a problem with older, demented patients, or those who are unconscious.’
    • ‘Others might view such people as demented or delusional or megalomaniacal.’
    • ‘Polonius insisted that Hamlet had become demented, and cautioned Ophelia to keep her distance.’
    • ‘On the flip side, cognition has improved in demented or impaired people given nutritional support.’
    • ‘High level of disability is associated with major depression, in both demented and nondemented people.’
    unbalanced, of unsound mind, mentally ill, deranged, crazed, distracted, troubled, disturbed, unhinged, insane, mad, mad as a hatter, mad as a march hare, raving mad, lunatic, out of one's head, out of one's mind, not in one's right mind, neurotic, psychotic
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    1. 1.1British informal Behaving irrationally due to anger, distress, or excitement:
      ‘she was demented with worry’
      • ‘Deep set eyes and a long face made him look like a demented scientist.’
      • ‘As if drunk, or stoned or demented, I jumble everything up, use wrong words or leave gaps in sentences that trail off to nowhere.’
      • ‘Louisa stopped navigating the steps to stare at me while I bounced all around the living room like a demented idiot.’
      • ‘Reaction to the wreck showed an almost demented optimism about the venture.’
      • ‘Then the speakers seem to come alive with demented directional droning.’
      • ‘I looked down and saw that he was eating some demented form of French fries with ketchup squirted all over them.’
      • ‘They fell in the gaily lit hall with a flutter like demented birds attempting flight.’
      • ‘Finally, at the age of 33, the demented fury that drove him on has subsided and other priorities have kicked in.’
      • ‘To me, it seemed like demented torture, and not very flattering.’
      • ‘Conversations may be in whispers or, often, in demented shouting contests.’
      • ‘It sounds like an orchestra of demented bassoonists playing at full tilt.’
      • ‘Not to let one musical style last for long, he soon ditched the guitar, grabbed the mic and started back in with some demented rapping.’
      • ‘They hold a twisted allure to the more demented members of any society.’
      • ‘As Earth orbits the sun, the tubes are lashing through space like water from a demented lawn sprinkler.’
      • ‘To my possibly demented mind there did seem to be something unique, even comical about the framing of the issues.’
      • ‘I probably looked more than a little demented, come to think of it.’
      • ‘If he lived to 200, he would never understand females, and the demented way their brains worked.’
      • ‘She flailed her limbs and screamed, looking like a poor demented bird.’
      mad, insane, deranged, out of one's mind, not in one's right mind, crazed, lunatic, unbalanced, unhinged, unstable, disturbed, distracted, as mad as a hatter, as mad as a march hare, stark mad
      non compos mentis
      sectionable
      crazy, mental, off one's head, out of one's head, off one's nut, nutty, nutty as a fruitcake, off one's rocker, not right in the head, not quite right in the head, round the bend, raving mad, stark raving mad, stark staring mad, bats, batty, bonkers, cuckoo, loopy, loony, bananas, loco, dippy, screwy, with a screw loose, touched, gaga, doolally, up the pole, not all there, out to lunch, off the wall, not right upstairs, away with the fairies
      barmy, crackers, barking, barking mad, round the twist, off one's trolley, as daft as a brush, not the full shilling, one sandwich short of a picnic
      buggy, nutsy, nutso, out of one's tree, meshuga, squirrelly, wacko, gonzo
      bushed
      porangi
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Origin

Mid 17th century: past participle of earlier dement ‘drive mad’, from Old French dementer or late Latin dementare, from demens out of one's mind.

Pronunciation:

demented

/dɪˈmɛntɪd/