a. [ L. vacuus. See Vacant. ] Empty; unfilled; void; vacant. [ 1913 Webster ]
Boundless the deep, because I am who fill
Infinitude; nor vacuous the space. Milton. [ 1913 Webster ]
That the few may lead selfish and vacuous days. J. Morley. [ 1913 Webster ]
n. The quality or state of being vacuous; emptiness; vacuity. W. Montagu. [ 1913 Webster ]