How To Use Crackbrained In A Sentence

I wonder what would happen to someone if they referred to the million man march as "crackbrained". Undefined
The answer that occurred to her was good and logical, at least by the crackbrained logic the phouka swore by. War for the Oaks
Rescuing Dessa at all was crackbrained enough; why make matters worse? Conan the Valiant
To think that he should be actually in this great, silent penitentiary, a convict, waiting here beside this cheap iron bathtub, not very sweet or hygienic to contemplate, with this crackbrained criminal to watch over him! The Financier
Sims was ridiculed as a crackbrained egoist and falsifier of evidence. Executive Economics

For some reason I can take historical analyses of crackbrained Nazi or Soviet or Roman or American policies. Archive 2009-05-10
One of our friends—thank God for their loyalty, their crazy generosity on this crackbrained project! In the Fullness of Time
On his own, he would have shared in the crackbrained political theories that abounded wherever tourists were to be found.
Waverley expressed his surprise that his friend Davie was capable of such trust; but the Baron gave him to understand that this poor simpleton was neither fatuous nec naturaliter idiota, as is expressed in the brieves of furiosity, but simply a crackbrained knave, who could execute very well any commission which jumped with his own humour, and made his folly a plea for avoiding every other. The Waverley
A belief or a conviction, no matter how crackbrained, is not an assertion subject to editorial or legal correction.
It cannot be possible that a man of that sagacity should be associated with such a crackbrained scheme.
Why would they ship their only daughter across five countries to compete in some crackbrained battle of the fittest?
Furthermore, in case you decide to emulate your crackbrained captain and his crazed heroics, I am giving you a direct order: No matter what happens, you are not to come after me. THE RIFT
He told me straight away that I was crackbrained and only dreaming.