47 entries under idiom topic. ×

10
non compos mentis(expression, adjective, law, mad)
9
mentally ill(expression, adjective, crazy, sick)
9
of unsound mind(expression, adjective, insane, sane)
7
not all there(expression, adjective, crazy, sick)
5
around the bend(expression, adjective, insane, sane)
5
off one's rocker(adjective, insane, sane)
4
round the bend(expression, adjective)
3
stark raving mad(expression, adjective, crazy, sick)
2
crazy as a loon(expression, adjective, crazy, sick)
2
mad as a hatter(adjective, crazy, sick, insane)
2
nutty as a fruitcake(expression, adjective, crazy, sick)
2
out of one's mind(adjective, insane, sane)
2
sick in the head(expression, adjective, crazy, sick)
1
bereft of reason
1
deprived of reason
0
amuse oneself(expression, amusement)
0
crazy person
0
disturbed person
0
drown care(expression, amusement)
0
dum vivimus vivamus(expression, amusement)
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APASmart Define. (2015). loco thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/loco/thesaurus/synonyms
ChicagoSmart Define. 2015. "loco thesaurus" https://smartdefine.org/loco/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, loco thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/loco/thesaurus/synonyms>.
MLASmart Define. "loco thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/loco/thesaurus/synonyms>