vacuous

[pioneer]

vacuous   

vac·u·ous [vákyoo əss]
adjective
1.  inane: lacking ideas or intelligence, or showing such a lack
a vacuous remark

2.  idle: lacking attention, concentration, or serious thought
a vacuous stare

3.  lacking content: having no content or substance (archaic)

[Mid-17th century. < Latin vacuus "empty"]

-vac·u·ous·ly, adverb
-vac·u·ous·ness, noun 

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