148 entries under adjective topic. ×

5
matchless(unique, same, unequalled)
5
one and only(expression, idiom, adverb, separate)
5
solo(separate, extraordinary, unusual, exceptional)
5
unaccompanied(separate, individual, detached, private)
5
unequaled
4
apart(adverb, individual, unity, solitary)
4
isolated(separate, simple, special, individual)
4
nothing but(expression, idiom, adverb, simply)
4
personal(separate, simple, special, individual)
4
private(separate, simple, special, individual)
4
simple(separate, special, individual, utter)
4
unmatched(perfect, outstanding, unique, same)
4
unmixed(separate, simple, special, individual)
3
absolute(limited, select, utter, restricted)
3
all
3
distinct(separate, simple, special, individual)
3
incomparable
3
lonely(separate, individual, detached, private)
3
unexampled(excellent, perfect, single, unique)
3
unitary(separate, simple, special, individual)
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APASmart Define. (2016). only thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/only/thesaurus/synonyms
ChicagoSmart Define. 2016. "only thesaurus" https://smartdefine.org/only/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, only thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/only/thesaurus/synonyms>.
MLASmart Define. "only thesaurus" 1 March 2016. Web. 22 September 2026. <https://smartdefine.org/only/thesaurus/synonyms>