apish asinine balmy bananas barmy bats batty beany befooled beguiled besotted bonkers brainless buffoonish buggy bughouse bugs cockeyed crackers crazy credulous cuckoo daffy daft dazed dippy dizzy doting dotty dumb fatuitous fatuous flaky flipped fond fool foolheaded foolish freaked-out fruitcakey fruity fuddled futile gaga gulled haywire idiotic imbecile inane inept infatuated insane just plain nuts kooky loony loopy mad maudlin moronic nuts nutty off the hinges off the track off the wall potty round the bend sappy screwball screwballs screwy senseless sentimental silly slaphappy stupid thoughtless wacky wet witless