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lunacy

lunacy

3 7.7
A very serious mental illness that makes a person lose touch with reality
  • noun
  • /ˈluːnəsi/
  • Archaic
translation icon : locura
  • I can not endure much more of your father's lunacy.
  • Lunacy Commission

Any special proceedings for like lunacy, anything like that.

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Examples

  • Look, the Lunacy Board is composed of competent alienists who know all about insanity.

  • Morgan suffered a brief attack of lunacy.

    Fiction book (1991)
  • What I want is proof of her lunacy... at any cost.

  • His mind is filled with lunacy.

  • In cases of hopeless lunacy...

  • "What the major was proposing was lunacy."

    Fiction book (1993)
  • What is this lunacy?

  • To suggest that we dignify his lunacy with respect is absurd and insulting.

    Blog text (3)
  • He's supposed to conceal his lunacy and real plans for the country until after he's elected.

    Blog text (28)
  • The sudden decision to invest all their savings seemed like pure lunacy to her friends.

Synonyms

insanity
vslunacy
231 6.5

A serious mental illness that makes a person unable to think or behave normally

is instead a historical legal label, not a clinical diagnosis
craziness
vslunacy
68 4.2

Very wild or foolish behavior, sometimes caused by problems in the mind

is a formal historical legal label rather than an informal behavior word
madness
vslunacy
  • Archaic
48 9.9

A legal state of serious mental illness found in court

is the historical legal term for the same state
insaneness
vslunacy
  • Archaic
9.9

A condition that makes a person very ill in the mind

is an older legal label rather than a modern clinical term

Antonyms

123 3.3

A healthy mind that can think clearly and behave normally

34 5.4

Clear thinking and decisions based on facts and logic

How Mentally Disturbed

psychosis
  • Specialized
52 8.7
lunacy
  • Archaic
3 7.7
mental disorder
  • Specialized
20 3.3
sanity
123 3.3

Surface Forms

lunacy singular
lunacies plural

Morphology

lunacy = lunatic (transparent) = lunatic + y

The noun 'lunacy' is a straightforward formation from the common base 'lunatic' meaning insanity, so the state noun is directly derived.

Etymology

The word lunacy comes from the Latin word luna 'moon', because people long ago thought the moon could change a person's mind or health. That's why courts and doctors once used lunacy as a legal word for real insanity.