Word
nut case, n.
a whimsically eccentric person
<noun.person>
freq. cnt.: 1
freq. cnt.: 1
crackpot
crank
fruitcake
nut
nut case
screwball
lexical pointers
derivationally related form
screwball
semantic pointers
hypernym
eccentric, eccentric person, flake, oddball, geek