Definition of lunacy in English:

lunacy

nounPlural lunacies

mass noun
  • 1The state of being a lunatic; insanity (not in technical use)

    ‘it has been suggested that originality demands a degree of lunacy’
    • ‘That laugh, that insane laugh, that maniacal smirk as the madwoman's yellow eyes glinted with lunacy.’
    • ‘I prize my mental instability and nurture the lunacy which manifests itself within my cranium.’
    • ‘If by this point you are not already delirious, fear not, even more jolly japes and lunacy are to follow.’
    • ‘This goes beyond mere bullying and descends into paranoid - and hypocritical - lunacy.’
    • ‘Yes, I was on the verge of lunacy, but it was only temporary.’
    • ‘Or maybe he would prefer something along the lines of suicidal confessions of a mind bordering on death and raving lunacy.’
    • ‘It does not supply the answer in the situation of an infant, a person under lunacy or overseas.’
    • ‘What must have contributed to their sudden lunacy?’
    • ‘She rises like the proverbial phoenix from the ashes of her lunacy to become the first woman psychoanalyst in Switzerland.’
    • ‘For one whose obsession has been certifiable by the commissioners of lunacy, here surely instead was proof of pure sanity.’
    • ‘As with the fool in King Lear, there is wisdom in his lunacy.’
    • ‘Either he wanted to make me delirious with jealousy over her vile decadence or simply get my certified opinion concerning her degree of lunacy.’
    • ‘He never exhibited any symptoms of lunacy that I could detect.’
    • ‘Indeed, due to her ellipsis, instead of remarking on Lisa's masochistic lunacy, we see her faith justified, because this is her proof of her love.’
    • ‘The sanest men have certain moments of unexplained lunacy.’
    insanity, madness, mental illness, derangement, dementia, dementedness, insaneness, loss of reason, unsoundness of mind, mental instability, mania, frenzy, psychosis
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    1. 1.1 Extreme folly or eccentricity.
      ‘such an economic policy would be sheer lunacy’
      • ‘Of course, someone had to file a lawsuit, which serves only to elevate this already overblown subject to new heights of lunacy.’
      • ‘Perhaps, if his presence is counter-productive in the squad, talk of him being forced out shouldn't be so readily dismissed as outright lunacy.’
      • ‘Writing from the perspective of an intelligent though lonely and bewildered child, he uses incisive humour to expose the lunacies, vagaries and hypocrisies of traditional and alternative belief systems.’
      • ‘It's an idealistic and moral endeavour, which apparently means that it's perceived as lunacy by some.’
      • ‘I always thought it was sheer lunacy, but have recently been beginning to question that assumption.’
      • ‘The American people are powerless to stop any of this lunacy.’
      • ‘They should deal with operational matters only, and not start to get into the madness and lunacy of policy setting.’
      • ‘Your first thought might be to regard this as utter lunacy.’
      • ‘Competing with Asian and European automakers by building American versions of what the opposition already offers is lunacy.’
      • ‘A couple weeks ago, I was chided by a couple of readers for only attacking rightwing lunacy and leaving leftwing lunacy alone.’
      • ‘This little masterpiece has its lunacies (why is it necessary for the memories to be restaged and turned into film clips?) and its limitations.’
      • ‘Obviously, the title of ‘best restaurant in the world’ is subjective to the point of lunacy.’
      • ‘Do you begin to see the total lunacy of letting these people have any say over school science curricula?’
      • ‘This might sound like a contradiction of terms or simply lunacy.’
      • ‘The present situation is one of sheer greed and lunacy.’
      • ‘The government has also tried to pass some horrendous law to justify their original lunacy, but it was rejected, in case people haven't noticed.’
      • ‘Thus, while we casually mock the lunacies of the past, some people, notably mainstream journalists, nod soberly at the lunacies of the present.’
      • ‘Even those who never believed that the lunacies of the seventies and early eighties had been entirely eradicated - evidence to the contrary has been accumulating for several years - did not predict the recent chain reaction of violence.’
      • ‘Because the lunacy of the current course of action is so extreme, the need for intimidating propaganda is concomitantly high.’
      • ‘Unfortunately, the play was ‘a crude attempt to satirize the lunacies of Hollywood’ and lasted fewer than fifty performances.’
      folly, foolishness, foolhardiness, stupidity, idiocy, imbecility, irrationality, illogicality, senselessness, nonsense, absurdity, absurdness, madness, insanity
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Origin

Mid 16th century (originally referring to insanity of an intermittent kind attributed to changes of the moon): from lunatic + -acy.

Pronunciation

lunacy

/ˈluːnəsi/