noun, plural fa·tu·i·ties.
Examples from the Web for fatuity
The affair had gone so smoothly that Ryanne's usual keenness fell below the mark; fatuity was the word.The Carpet from Bagdad|Harold MacGrath
They rise to Alpine heights of pure wisdom and power, leaving him to flounder ignobly in the mire of his own fatuity.The Spenders|Harry Leon Wilson
One feature of the message would have convinced the Tyro, had he seen it, of the fatuity of fatherhood.Little Miss Grouch|Samuel Hopkins Adams
Their conduct to those who did not understand this, resembled insanity or fatuity more than anything else.The Black Prophet: A Tale Of Irish Famine|William Carleton
The girl was almost sorry for the man: his fatness, his fatuity appealed to her pity.Boy Woodburn|Alfred Ollivant