The Collaborative International Dictionary
crackbrained \crackbrained\, Crack-brained
\Crack"-brained`\(-br[=a]nd`), a.
Having an impaired intellect; whimsical; extremely foolish;
crazy; as, crackbrained notions.
--Pope.
Syn: idiotic.
Wiktionary
a. idiotic#English.
WordNet
adj. insanely irresponsible; "an idiotic idea" [syn: idiotic]
Usage examples of "crackbrained".
When a mortal is so lucky as to be in the good graces of the god Plutus, and is not crackbrained, he is pretty sure to succeed in everything: I had not to search very long before I found a casino suiting my purpose exactly.
It was so bizarre and crackbrained that for too many moments we did nothing because all three of us were simply hypnotized by the force and ugliness of it.
Anything at all that made her think this more difficult, more likely to fail, might just be enough to make her decide to try some crackbrained scheme of her own.
What a crackbrained notion, sweeping to the sea, as if the empire would let him.
And all you can tell me is that crackbrained rumor about a buried spaceship?
But here I am, just the same, behaving like a crackbrained crystal gazer.
Just when I thought the Bush administration had adopted every crackbrained idea that could threaten Mother Earth, along comes another.