62 entries under empty topic. ×

29
vacant(adjective, dull, clear, free, harsh)
24
blank(adjective, clear, full, thoughtless)
21
inane(adjective, dull, simple, careless, silly)
17
dull(adjective, quiet, flat, careless, foolish)
16
silly(adjective, informal, careless, indifferent, foolish)
14
void(adjective, clear, free, smooth, harsh)
12
foolish(adjective, careless, indifferent, silly, stupid)
10
stupid(adjective, dull, simple, slow, careless)
9
dumb(adjective, simple, slow, stupid)
9
unoccupied(adjective, clear, free, bare, thoughtless)
7
barren(adjective, clear, free, bare)
7
devoid(adjective, clear, free, bare)
7
shallow(adjective, simple, slow, stupid, boring)
6
stark(adjective, clear, smooth, bare)
5
superficial(adjective, unintelligent)
4
uncomprehending(adjective, unintelligent)
4
unreasoning(adjective, careless, stupid, unthinking)
3
drained(adjective, clear, free, stupid)
3
lacking(clear, free, bare, deficient)
3
unfilled(adjective, clear, free, bare)
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APASmart Define. (2015). vacuous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/vacuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "vacuous thesaurus" https://smartdefine.org/vacuous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, vacuous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/vacuous/thesaurus/synonyms>.
MLASmart Define. "vacuous thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/vacuous/thesaurus/synonyms>