RichThesaurus
head case
head case
synonyms
screwball
nutter
nutcase
loony
nut
crackpot
nutjob
wing nut
kook
maniac
radge
lunatic
cuckoo
dingbat
crank
madwoman
madman
wacko
weirdo
headbanger
wackadoo
weirdie
psychotic
wackadoodle
wack
schizo
odd bod
oddball
psycho
eccentric
sicko
psychopath
case
basket case
crazy
unorthodox person
oddity
nutso
meshuggener
individualist
one-off
misfit
queer fish
freak
character
fruitcake
free spirit
loon
mad person
individual
head case
definitions
noun
Used other than figuratively or idiomatically: see head, case.