Synonyms|121Antonyms|20|Broader|1Narrower|0Related|634

10 entries under idiom topic. ×

4
non compos mentis(expression, crazy, hysterical, insanity)
2
not right(expression, insanity)
1
not all there
1
scatter brained(expression, insanity)
1
shatter brained(expression, insanity)
0
all possessed(expression, insanity)
0
bereft of reason(expression, insanity)
0
beside oneself(expression, insanity)
0
insanely irresponsible
0
off one's head(expression, insanity)
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ChicagoSmart Define. 2015. "crackbrained thesaurus" https://smartdefine.org/crackbrained/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, crackbrained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/crackbrained/thesaurus/synonyms>.
MLASmart Define. "crackbrained thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/crackbrained/thesaurus/synonyms>