675 entries under adjective topic. ×

4
exclusive(separate, extraordinary, superior, unusual)
4
hopeful(strong, easy, solid, definite)
4
insistent
4
known(clear, understanding, keen, firm)
4
likely(expected, imminent, forthcoming, looming)
4
many
4
noteworthy(extraordinary, remarkable, particular)
4
numerous
4
peculiar(exact, extraordinary, superior, unusual)
4
personal(superior, unusual, exceptional, special)
4
probable(reasonable, sensible, natural, expected)
4
regular(correct, reasonable, firm, sensible)
4
resolute(strong, easy, firm, solid)
4
solitary(single, alone, isolation, apart)
4
supreme(flawless, faultless, absolute, textbook)
4
sure-fire(informal, definite, sure, expected)
4
typical(reasonable, sensible, natural, valid)
4
unchangeable(clear, firm, solid, determined)
4
unfaltering(set, clear, complete, firm)
4
uniform(firm, solid, stable, fixed)
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APASmart Define. (2016). certain thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/certain/thesaurus/synonyms
ChicagoSmart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, certain thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>.
MLASmart Define. "certain thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms>