fatuously

comparative more fatuously · superlative most fatuously

1. With smug stupidity or vacuous silliness; idiotically.

   Will they, like the fellows, judiciously bear a hand in sweeping the stable, or will they fatuously wait to be themselves swept with a besom of destruction?

   1835, “Reform in the College of Physicians”, in Michael Ryan, editor, London Medical and Surgical Journal, Vol. VII, page 153

   Synonyms: foolishly, idiotically, stupidly