D defs.my
Entry 1 sense Webster, 1913

Vacuous

/(văk"ū̇*ŭs)/ · Vac·u·ous · IPA /ˈvækju.əs/
01 a. Empty; unfilled; void; vacant.
  1. 1.
    Empty; unfilled; void; vacant.
    “Boundless the deep, because I am who fill Infinitude; nor vacuous the space.” Milton.
    “That the few may lead selfish and vacuous days.” — J. Morley.