Definition of hyper in English:

hyper

adjective

informal
  • Hyperactive or unusually energetic.

    ‘eating sugar makes you hyper’
    • ‘Maybe there's been so much rejection from past peers that she acts hyper to get attention.’
    • ‘I'm slowly losing the slight hyper buzz I had going on this afternoon, but that's okay.’
    • ‘They make us hyper and overexcited and, once faded, leave us grumpy or exhausted or or tearful or craving more.’
    • ‘It gives me the right to be hyper and full of zest and energy, or slow and devoid of all unique thought.’
    • ‘He waves away a hotel employee bearing refreshments: coffee makes him hyper.’
    • ‘The long car ride and Red Bulls we had pounded left him hyper and a little crazy.’
    • ‘I had hoped the dogs would be less excited, but when have they ever been anything but hyper to meet guests?’
    • ‘Refreshingly frank and unaffected, he loves a chat and concedes that he's often hyper.’
    • ‘Next week will see the gates of Unionism come crushing down, be prepared to see the siege mentality go into hyper speed.’
    • ‘Whenever his friends or family were around he became extremely energetic and hyper.’
    • ‘Now I'm hyper and freaked out, and at the same time too depressed to work.’
    • ‘Williams was so hyper it made Faulkner ‘look like a Zen Buddhist, even with his twitching’.’
    • ‘I hate going even without these barriers so I'm on hyper alert for anything that might lead me down that path.’
    • ‘Beth's hyper as it is and has a bit of a caffeine intolerance.’
    • ‘A generation will grow up even more fickle than before, hyper consumers, hedonists.’
    • ‘My two girls, Romy, who's three and a half and Honor who's just one and half, were hyper with all the activity.’
    • ‘You get a smiley, hyper, crazy kid who was just so out there it was a wonder where he got his energy from.’
    • ‘They're not only super sexy, they also are totally hyper and so much fun onstage.’
    • ‘Naturally, Olive was hyper, the way the woman was talking she had the job and it was only a matter of signing a contract.’
    • ‘I was still feeling exhausted from the last week, so had a strong coffee just before going on and felt a bit hyper for the first hour or so.’
    mad, crazy, insane, out of one's mind, hysterical, beside oneself, frenzied, crazed, demented, maniacal, manic, frantic, wound up, worked up, raving, wild
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Origin

1940s: abbreviation of hyperactive.

Pronunciation:

hyper

/ˈhīpər/