fatuous Hear it!

fatuous definition

fatu·ous (fac̸h′o̵̅o̅ əs)

adjective

  1. complacently stupid or inane; silly; foolish
  2. Archaic like an ignis fatuus; illusory; unreal

Etymology: L fatuus, foolish < IE base *bhāt-, to strike > batter

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