6
far-out(adjective, stupid, exceptional, special, unreasonable)
6
smashing(adjective, extraordinary, outstanding, notable, astonishing)
6
superior(adjective, comfortable, wealth, safe, worthy)
6
uncommon(adjective, extraordinary, unusual, strange, exceptional)
6
unrealistic
6
unusual(adjective, extraordinary, strange, superb, exceptional)
5
eye-catching(fantastic, impressive, stunning)
5
farfetched(adjective, unreasonable, dubious, unlikely, flimsy)
5
incredulous
5
ludicrous(adjective, ridiculous)
5
mind-blowing(adjective, extraordinary, superb, wonderful, marvelous)
5
nonsensical(adjective, ridiculous)
5
superhuman(adjective, excellent, superb, amazing, astonishing)
5
surprising(adjective, extraordinary, unusual, strange, superb)
5
tall
5
untenable(adjective, unbelievable, implausible, improbable)
4
ace(noun, adjective, excellent, informal, superb)
4
cool(adjective, extraordinary, superb, wonderful, marvelous)
4
fictitious(adjective, happy, perfect, superb, wonderful)
4
foolish(adjective, ridiculous)
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APASmart Define. (2016). incredible thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/incredible/thesaurus/synonyms
ChicagoSmart Define. 2016. "incredible thesaurus" https://smartdefine.org/incredible/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, incredible thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/incredible/thesaurus/synonyms>.
MLASmart Define. "incredible thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/incredible/thesaurus/synonyms>