18
fresh(adjective, clear, pleasant, extraordinary, energetic)
18
new(adjective, clear, extraordinary, new, spare)
14
idle(adjective, dull, new, fresh, bare)
13
extra(adjective, clear, waste, spare, reserve)
12
unaccustomed(adjective, strange, new, fresh, original)
11
leftover(adjective, waste, extraordinary, new, spare)
10
remaining(adjective, waste, new, spare, fresh)
9
free(adjective, idle, reserve, bare, extra)
8
original(adjective, unusual, strange, new, fresh)
8
spare(adjective, waste, extraordinary, new, fresh)
8
unemployed(adjective, dull, job, idle, bare)
8
vacant(adjective, clear, new, loose, fresh)
7
disused(adjective, vacant, disused, untenanted)
7
obsolete(adjective, disused)
7
surplus(adjective, waste, extraordinary, new, spare)
7
unoccupied(adjective, dull, idle, reserve, extra)
6
abandoned(adjective, empty, vacant, unkempt, available)
6
inactive(adjective, action, idle, lazy, slack)
6
pristine(adjective, new, fresh, used)
6
superfluous(adjective, extraordinary, new, spare, fresh)
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APASmart Define. (2015). unused thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unused/thesaurus/synonyms
ChicagoSmart Define. 2015. "unused thesaurus" https://smartdefine.org/unused/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unused thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unused/thesaurus/synonyms>.
MLASmart Define. "unused thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/unused/thesaurus/synonyms>