1
negligent(adjective, unconcerned, ignorant, unconscious, heedless)
1
nescient(adjective, unconcerned, ignorant, unconscious, heedless)
1
neurotic(adjective, crazy, cuckoo, queer)
1
non compos
1
not cognizant(expression, adjective, unconcerned, ignorant, unconscious)
1
not there(expression, hacked, lunatic, undiscerning, crackbrained)
1
nougat(noun, slang, sick, mad person)
1
nut(noun, slang, sick, mad person)
1
nutcase(noun, slang, sick, mad person)
1
nutjob(noun, slang, sick, mad person)
1
nutter(noun, slang, sick, mad person)
1
nutty as a fruitcake(expression, idiom, crazy, sick, off)
1
oblivious(adjective, unconcerned, ignorant, unconscious, heedless)
1
off one's chump
1
out cold(expression, adjective, unconcerned, ignorant, unconscious)
1
out of it(expression, adjective, idiom, unconcerned, ignorant)
1
overlooking(unconcerned, unfamiliar, uninformed, undiscerning, unrecognizing)
1
reasonless
1
retarded
1
schiz(noun, slang, sick, mad person)
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APASmart Define. (2015). not all there thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/not_all_there/thesaurus/synonyms
ChicagoSmart Define. 2015. "not all there thesaurus" https://smartdefine.org/not_all_there/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, not all there thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/not_all_there/thesaurus/synonyms>.
MLASmart Define. "not all there thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/not_all_there/thesaurus/synonyms>