1
object of affection(noun, expression, idiom, love, prize)
1
once in a lifetime
1
onliest(adjective, adverb, exceptional, individual, rare)
1
only-begotten
1
particular(adjective, separate, exceptional, special, individual)
1
prize(noun, love, steady, dear, darling)
1
rave(noun, love, prize, steady, magnification)
1
renowned
1
separate(adjective, exceptional, special, rare, exclusive)
1
significant other(noun, expression, love, prize, steady)
1
solo(adjective, exceptional, individual, rare, exclusive)
1
someone adored(noun, expression, love, prize, steady)
1
steady(noun, love, prize, companion, dear)
1
tootsie(noun, love, prize, steady, magnification)
1
true love(noun, expression, love, prize, steady)
1
unaccompanied(adjective, individual, single, solitary, singular)
1
unequaled(adjective, exceptional, individual, exclusive, single)
1
unexampled(adjective, exceptional, rare, exclusive, single)
1
unit
1
unpaired
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APASmart Define. (2016). one and only thesaurus. Retrieved September 27, 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 September 27, 2026).
HarvardSmart Define 2016, one and only thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/one_and_only/thesaurus/synonyms>.
MLASmart Define. "one and only thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/one_and_only/thesaurus/synonyms>