Silly ( Informal ) (4)
(Other definitions for daft that I've seen before include "Informally silly or foolish" , "Informally crazy as a brush" , "like a brush?" , "Half-witted" , "Potty" .)
(Other definitions for goofy that I've seen before include "Disney's anthropomorphic white-gloved canine" , "Silly, wacky, sappy" , "Silly -- ridiculous" , "Disney cartoon character" , "Harmlessly eccentric" .)