28 entries under solitary topic. ×

1
separate(adjective, exceptional, special, rare, exclusive)
1
solo(adjective, exceptional, individual, rare, exclusive)
1
unaccompanied(adjective, individual, single, singular)
1
unequaled(adjective, exceptional, individual, exclusive, single)
1
unparalleled(adjective, exceptional, individual, exclusive, single)
0
only one(expression, adjective, alone, singular)
0
remaining(adjective, alone, singular, only)
0
unshared(adjective, alone, singular, only)
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APASmart Define. (2016). one and only thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/one_and_only/thesaurus/synonyms
ChicagoSmart Define. 2016. "one and only thesaurus" https://smartdefine.org/one_and_only/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, one and only thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/one_and_only/thesaurus/synonyms>.
MLASmart Define. "one and only thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/one_and_only/thesaurus/synonyms>