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a. Lacking intelligence; stupid or empty-headed.
b. Devoid of substance or meaning; vapid or inane: a vacuous comment.
c. Devoid of expression; vacant: a vacuous stare. See Synonyms at empty.
2. Lacking serious purpose or occupation; idle: "A sleepless night was followed by a vacuous day" (Zon Ferraris).
3. Archaic Devoid of matter; empty: vacuous space.

[From Latin vacuus, empty; see vacuum.]

vac′u·ous·ly adv.
vac′u·ous·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vacuousness - indicative of or marked by mental vacuity and an absence of ideas; "the vacuousness of her face belied her feelings"
stupidity - a poor ability to understand or to profit from experience


Total lack of ideas, meaning, or substance:
References in periodicals archive ?
However, the last twelve lean years since the outbreak of the Darfur people's revolution have demonstrated the emptiness and vacuousness of that argument.
Andrews, supra note 167, at 70 (noting that idiots may be recognized by "odd physical appearance, especially the size of their heads, deformities, or enlargement in their features, and vacuousness in their expressions").
The inevitable superficiality of this debate will rightly condemn the party to impotence, at least until the Tories contrive such a debacle as to put Labour back in business, despite its vacuousness.
The nested galleries of Bochner's work are exhausting in their vacuousness and superficiality--the work is distressingly lifeless, lethargic, and halfhearted.
My brother, Jo-Jo, a Trinity College, Cambridge man, and I, often titter together about the vacuousness of many of these modern degrees - media studies/journalism etc - but to be fair most of our scorn is reserved for such things as geography or "colouring in for grown-ups" as one wag put it.
A nominee for Best Foreign Language Film at the March 2 Academy Awards, the movie stars Toni Servillo as a socialite facing up to the vacuousness of his life in Berlusconi-era Italy.
During the course of the '80s, however, this mind-set lapsed into one of machismo and vacuousness, and was soon afterward called into question by the emergence of neo-Conceptual and feminist political art in Europe.
And just as the Victorian institutions are collapsing (see the Boy Scouts and Presbyterian Church) so there is every likelihood that the vacuousness of contemporary culture will be discovered for what it is and that people will simply move on from these churches when they reach that point of realization, and we will once again be left with empty churches.
When they come close to Lyra and Will, Pullman emphasizes the feebleness of their whispering voices and the vacuousness of their bodies.
which was produced the same year) suggests the vacuousness of our own rapidly urbanizing culture.
It shows the degree of vacuousness that consistently emanates from his mouth.
But the advent of Protestantism had a profound effect on the bird's iconographical import: because of the association with the papacy, reformers took advantage of the links between Catholic luxury and parrots to create an iconology of "intellectual vacuousness," which they used to satirical effect (90).