Vacuousness is a quality of being mindless or unintelligent. You get a kick out of reality TV shows, but your intellectual sister scoffs at their vacuousness.

Things that demonstrate empty-headedness or a lack of deep thought are vacuous, and the state of being vacuous is vacuousness. You can use this word to express the superficiality of things (or people), like the vacuousness of middle school gossip or the vacuousness of a politician's empty words. The Latin root, vacuus, means "empty, void, or free."

Definitions of vacuousness
  1. noun
    indicative of or marked by mental vacuity and an absence of ideas
    “the vacuousness of her face belied her feelings”
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    type of:
    a poor ability to understand or to profit from experience
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