around the bend |
(informal) crazy; insane. |
barmy |
(chiefly British; informal) a bit crazy; nuts. [1/2 definitions] |
batty |
(slang) eccentric or crazy. |
berserk |
deranged or crazy. [1/2 definitions] |
buggy2 |
(informal) crazy. [1/2 definitions] |
cuckoo |
(slang) crazy or foolish. [1/2 definitions] |
daffy |
(informal) silly, foolish, crazy, or weak-minded in mood or temperament. |
dotty1 |
(informal) eccentric, weak-minded, or a little crazy; daft. [1/4 definitions] |
fruitcake |
(slang) a crazy or eccentric person. [1/2 definitions] |
gaga |
(informal) crazy or ecstatic. |
haywire |
(informal) acting in an unpredictable or disordered manner; crazy. [1/3 definitions] |
insane |
having a disease of the mind; crazy; mad. [1/2 definitions] |
kook |
(slang) a person considered to be strange or crazy. |
loco |
(slang) crazy; mad; insane. [1/3 definitions] |
loony |
insane; crazy; lunatic. [1/3 definitions] |
mad |
crazy; insane. [1/6 definitions] |
mad as a hatter |
wildly impulsive or completely crazy. |
mental |
(informal) crazy; insane. [1/4 definitions] |
meshuga |
(informal) crazy; insane. |
nut |
(slang) a foolish or crazy person. [1/4 definitions] |
nut case |
(slang) one who is unbalanced or crazy. |