3
unimpeded(adjective, clear, free, allow, let)
3
unpopulated(adjective, unoccupied, untenanted)
3
unthoughtful(adjective, thoughtless)
3
unutilized
3
weightless(adjective, unsubstantial)
3
worthless(adjective, poor, value, small, silly)
2
abstract(adjective, absent)
2
amazed
2
apathetic(adjective, cold, aloof, neutral, indefferent)
2
at liberty(adjective, free, allow, let, liberty)
2
bland
2
bleak(adjective, poor, small, insignificant, unimportant)
2
brainless(adjective, thoughtless)
2
depleted(adjective, poor, small, insignificant, unimportant)
2
disinterested(adjective, friendly, appropriate, cold, aloof)
2
dreamy(adjective, indifferent, negative, blank, languid)
2
driveling(adjective, boring, tedious, tasteless, lifeless)
2
ethereal(adjective, unsubstantial)
2
exhausted(adjective, bare, empty, reduced, weakened)
2
feeble-minded
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APASmart Define. (2015). vacant thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/vacant/thesaurus/synonyms
ChicagoSmart Define. 2015. "vacant thesaurus" https://smartdefine.org/vacant/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, vacant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/vacant/thesaurus/synonyms>.
MLASmart Define. "vacant thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/vacant/thesaurus/synonyms>