Synonyms:
- apish,
- arrested,
- asinine,
- babbling,
- backward,
- batty,
- befooled,
- beguiled,
- besotted,
- blithering,
- brainless,
- buffoonish,
- burbling,
- cockeyed,
- crackbrained,
- cracked,
- crazy,
- credulous,
- cretinistic,
- cretinous,
- daffy,
- daft,
- dazed,
- dithering,
- dizzy,
- doting,
- driveling,
- drooling,
- dumb,
- fatuitous,
- fatuous,
- flaky,
- fond,
- fool,
- foolheaded,
- foolish,
- fuddled,
- futile,
- gaga,
- goofy,
- gulled,
- half-baked,
- half-witted,
- imbecile,
- imbecilic,
- inane,
- inept,
- infatuated,
- insane,
- kooky,
- loony,
- mad,
- maudlin,
- maundering,
- mentally defective,
- mentally deficient,
- mentally handicapped,
- mentally retarded,
- mongoloid,
- moronic,
- not all there,
- nutty,
- retarded,
- sappy,
- screwy,
- senseless,
- sentimental,
- silly,
- simple,
- simpleminded,
- simpletonian,
- slobbering,
- stupid,
- subnormal,
- thoughtless,
- wacky,
- wet,
- witless