harebrained Synonyms

insane mad softheaded thoughtless unconsidered unsensible unwise wild witless temerarious stupid silly senseless ridiculous reckless rash preposterous nonsensical ill-advised cockeyed addlebrained scatterbrained rattlebrained unintelligent ill-considered featherheaded dippy cockamamie birdbrained unworkable half-baked crackpot ill-conceived feebleminded lightheaded featherbrained empty-headed airheaded madder madcap giddy frivolous foolish foolhardy flighty fatuous dizzy daft crazy cray