fatuous Meaning, Definition & Usage

  1. adjective satellite devoid of intelligence
    vacuous; mindless; inane; asinine.

WordNet

Fat"u*ous adjective
Etymology
L. fatuus.
Definitions
  1. Feeble in mind; weak; silly; stupid; foolish; fatuitous. Glanvill.
  2. Without reality; illusory, like the ignis fatuus.
    Thence fatuous fires and meteors take their birth. Danham.

Webster 1913