1
screw-loose(noun, slang, sick, mad person)
1
screwball(noun, slang, sick, mad person)
1
senseless
1
sick in the head(expression, idiom, crazy, sick, lunatic)
1
simple
1
simpleminded
1
simpletonian
1
slobbering
1
spacey(adjective, unconcerned, ignorant, unfamiliar, unconscious)
1
stark-mad
1
stark-staring mad
1
stark raving mad(expression, adjective, idiom, crazy, sick)
1
strange
1
strung out(expression, unconcerned, unfamiliar, uninformed, undiscerning)
1
subnormal
1
tetched
1
trainwreck(noun, slang, sick, mad person)
1
unacquainted(adjective, unconcerned, ignorant, unfamiliar, unconscious)
1
unaware(adjective, ignorant, unconscious, uninformed)
1
unconcerned(ignorant, unfamiliar, unconscious, uninformed)
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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>