empty-headedness

In the leading case, from 1900, a journalist was found guilty for describing a judge as an "impudent little man in horsehair, a microcosm of conceit and empty-headedness".

The practical Anton, however, knew that they had inherited the same empty-headedness that he had been ostracized for in his larvahood.

At New York, as previously at Philadelphia, Chicago, and San Francisco, lively complaints were made of the vanity and levity of my tenor, Cardinali, who was an empty-headed, fatuous creature unable to write his own name or even to read the love-letters which, in spite, or perhaps in consequence of his empty-headedness, were frequently addressed to him by affectionate and doubtless weak-minded young ladies.

I don't know if it's sheer empty-headedness or excessive servile-to-power syndrome -- probably both, as is usually the case -- but that claim is both painfully dumb and misleading.

I marveled at the little creature's empty-headedness.