Words at Play : Top 10 Sophisticated Insults
Definition:
silly or stupid: complacently or inanely foolish
Example:
"Assuming that everyone has parents who could or would bankroll a life in NYC or SF is fatuous." Kelly Williams Brown, Jezebel.com, July 13, 2013
About the Word:
Long ago, fatuous meant "illusory," after ignis fatuus, the strange light (literally "foolish fire") that sometimes appears at night over marshy ground. The word's Latin root the fatuus we see in ingis fatuus is also behind the word infatuate, which once meant "to make foolish," but which now usually means "to inspire with foolish love or admiration."