2
divine(superior, outstanding, amazing, best, chosen)
2
doubtable(adjective, thin, doubtful, dubious, suspicious)
2
drake
2
extravagant(adjective, strange, superb, wonderful, stupid)
2
farfetched(hard, difficult, unreasonable, dubious, unlikely)
2
fictional(adjective, strange, crazy, fantastic, fantasy)
2
first-class(adjective, excellent, extraordinary, superb, wonderful)
2
flaky(adjective, great, informal, extraordinary, fantastic)
2
freakish(adjective, strange, fantasy, unreal)
2
godlike(adjective, superior, outstanding, amazing, best)
2
grotesque(adjective, strange, silly, fantasy, unreal)
2
hallucinational(adjective, strange, fantasy, unreal)
2
hallucinative(adjective, strange, fantasy, unreal)
2
harebrained(adjective, extraordinary, silly, amazing, absurd)
2
heroic(adjective, superior, outstanding, amazing, best)
2
illusional(adjective, strange, fantasy, unreal)
2
illusionary(adjective, strange, fantasy, unreal)
2
illusive(adjective, strange, fantasy, unreal)
2
incredibly
2
magical(adjective, superior, outstanding, amazing, best)
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APASmart Define. (2016). unbelievable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unbelievable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unbelievable thesaurus" https://smartdefine.org/unbelievable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unbelievable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unbelievable/thesaurus/synonyms>.
MLASmart Define. "unbelievable thesaurus" 30 March 2016. Web. 29 September 2026. <https://smartdefine.org/unbelievable/thesaurus/synonyms>