1
loco(noun, crazy, mad, insane, irrational)
1
mad as a March hare(expression, idiom, frantic, unglued, lunatic)
1
mad as a hatter(expression, idiom, frantic, unglued, lunatic)
1
maniac(noun, crazy, mad, insane, irrational)
1
manic(crazy, hysterical, lunatic, potty, psychotic)
1
non compos mentis(expression, idiom, crazy, hysterical, psychotic)
1
nutty as a fruitcake(expression, crazy, hysterical, lunatic, psychotic)
1
nutty as fruitcake(expression, idiom, crazy, frantic, lunatic)
1
of unsound mind(expression, idiom, frantic, unglued, lunatic)
1
out to lunch(expression, idiom, frantic, unglued, lunatic)
1
psychopathic(crazy, hysterical, psychotic)
1
psychotic(crazy, mad, hysterical, crazed)
1
round the bend(expression, idiom, frantic, unglued, lunatic)
1
schitzy(crazy, hysterical, hacked, lunatic, psychotic)
1
schizo(frantic, unglued, lunatic, aper, well-built)
1
schizoid(crazy, mad, hysterical, lunatic, crazed)
1
schizzo(crazy, insane, irrational, distracted, frantic)
1
screw loose(expression, frantic, unglued, lunatic, potty)
1
unglued(crazy, insane, irrational, frantic, lunatic)
1
unscrewed(crazy, insane, irrational, distracted, frantic)
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APASmart Define. (2013). whacko thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/whacko/thesaurus/synonyms
ChicagoSmart Define. 2013. "whacko thesaurus" https://smartdefine.org/whacko/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2013, whacko thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/whacko/thesaurus/synonyms>.
MLASmart Define. "whacko thesaurus" 17 June 2013. Web. 24 September 2026. <https://smartdefine.org/whacko/thesaurus/synonyms>