EN

Synonyms for insanity

Definitions

  1. n. 1

    The state of being insane; madness.

    The defendant pleaded insanity in the hope of getting a reduced sentence.

Forms

Plural
insanities → madnesses, lunacies, crazinesses, derangements…

Choose the right word

Insanity, Lunacy, Madness or Mania?

Lunacy originally denoted intermittent insanity, supposed to be dependent on the changes of the moon (L. Madness is the old popular term, now less common, for insanity in its widest sense, but with suggestion of excitement, akin to mania.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

  • madness Though this be madness, yet there is method in it.
  • craziness I have had enough of the craziness of our lives.
  • lunacy Don't succumb to lunacy too much, tomorrow is your wedding!
  • mania Something about big cities triggers mania in me.

Popularity over time

Word1850 → 2019Trend
insanitysteady
madnessrising
crazinessrising
lunacysteady
derangementfalling

Use in printed books, per decade from 1850 to 2019.

By length

5 letters
mania3, craze1
6 letters
frenzy2, lunacy3, idiocy4
7 letters
madness2
8 letters
dementia4, paranoia4, delirium4, unsanity
9 letters
craziness3, nonsanity, bedlamism
10 letters
alienation5, aberration4, insaneness
11 letters
distraction3, derangement, disensanity
13 letters
hallucination5

The small number after each word is its number of syllables (mania3 = 3 syllables).