Liberal Dictionary English Dictionary
adjective
- foolish or inane, especially in an unconscious, complacent manner; silly.
- unreal; illusory.
adjective
- complacently or inanely foolish
c.1600, from Latin fatuus “foolish, insipid, silly;” of uncertain origin (Buck suggests originally “stricken” in the head). Related: Fatuously; fatuousness.