screwy (adj.)
- abnormal
- anomalous
- apish
- asinine
- balmy
- barmy
- bats
- batty
- beguiled
- besotted
- bonkers
- boozy
- brainless
- buffoonish
- buggy
- canned
- cockeyed
- cracked
- crackers
- crank
- cranky
- crazy
- credulous
- crotchety
- daft
- dazed
- deviant
- different
- disguised
- divergent
- dizzy
- doting
- dotty
- drunk
- dumb
- eccentric
- erratic
- exceptional
- fatuous
- fey
- flaky
- fond
- foolish
- freakish
- fruity
- fuddled
- funny
- futile
- gaga
- goofy
- haywire
- idiosyncratic
- idiotic
- imbecile
- inane
- inebriated
- inept
- infatuated
- insane
- irregular
- kinky
- kooky
- loony
- loopy
- lunatic
- mad
- maggoty
- maudlin
- moronic
- muddled
- nuts
- nutty
- odd
- peculiar
- pixilated
- plastered
- potty
- queer
- quirky
- sappy
- screwball
- senseless
- sentimental
- silly
- singular
- slaphappy
- strange
- stupid
- thoughtless
- twisted
- unbalanced
- unconventional
- unnatural
- unsound
- wacky
- wet
- whimsical
- witless
