EN

Synonyms for demented

  • adjective

Most common

crazy insane lunatic deranged brain-damaged dementiated

All synonyms

Adjective

1. Insane — insane; mentally ill

insane, crazy, mad, lunatic, deranged, unhinged, delirious, sick, daft, disturbed, foolish, distraught, unbalanced, cracked, brainsick, psychotic, crazed, psycho, daffy, nutty, screwy, fruity

Other

brain-damaged, non compos, dementiated

Definitions

  1. adj. 1

    Insane; mentally ill.

Related words

Word family
dementedly dementedness

Example sentences

  • crazy He must be crazy to go out in this stormy weather.
  • insane The like-to-dislike ratio on this video is insane.
  • lunatic Gunter was yelling at the cops like a lunatic to help him.
  • deranged A seriously deranged person lived in that forest.

Popularity over time

Word1850 → 2019Trend
dementedrising
crazyrising
insanerising
lunaticrising
derangedrising

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

By length

3 letters
mad1
4 letters
sick1, daft1
5 letters
crazy2, nutty2, daffy2
6 letters
insane2, psycho2, fruity2, crazed1, screwy2
7 letters
cracked1, foolish2, lunatic3
8 letters
deranged2, unhinged2
9 letters
disturbed2, psychotic3, delirious4, brainsick
10 letters
unbalanced3, distraught2
11 letters
dementiated

The small number after each word is its number of syllables (crazy2 = 2 syllables).

In other languages

Français
dément
Català
dement