3
whacky
2
bughouse
2
certifiable
2
dippy
2
hits(noun, verb, box, breaks, charges)
2
meshuga
2
non compos mentis
2
touched
1
bashes
1
bat
1
beats(noun, verb, box, strikes, waves)
1
berserk(adjective, irrational)
1
crack-brained
1
crackpot
1
flaky
1
irrational
1
of unsound mind
1
out to lunch
1
psycho
1
screwball
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). bats thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/bats/thesaurus/synonyms
ChicagoSmart Define. 2015. "bats thesaurus" https://smartdefine.org/bats/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, bats thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/bats/thesaurus/synonyms>.
MLASmart Define. "bats thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/bats/thesaurus/synonyms>