harebrained

adj

1. Absurd, foolish or stupid.

   ““Now why do I get the feeling we're not talking about the harebrained plan you came up with?” “It wasn't harebrained.” “Did it have you going within twenty feet of a whorehouse at night, unchaperoned?” He knew darn well it did.”

2. Frivolous and silly; featherbrained or scatterbrained; stupid.

   “Her getting a parcel from a hare-brained wench at the coaches in St. John Street; her booty made at the fire, and again at Harwich, all give us excelle”