1
altitudinous(adjective, great, big, high, large)
1
apart
1
arm and a leg(expression, idiom, fancy, high, high-priced)
1
asunder
1
at a premium(expression, adjective, idiom, fancy, high)
1
big(adjective, great, high, large, lofty)
1
big-ticket(adjective, fancy, high, extravagant, lavish)
1
boundless(unreasonable, extreme, extravagant, excessive, unwarranted)
1
colossal(adjective, great, big, high, large)
1
costly(adjective, fancy, high, extravagant, valuable)
1
dear(adjective, fancy, high, extravagant, valuable)
1
disproportionate(unreasonable, extreme, extravagant, excessive, unwarranted)
1
dissipated(unreasonable, extreme, extravagant, excessive, unwarranted)
1
dizzying(adjective, unreasonable, extreme, high, extravagant)
1
elevated(adjective, great, big, high, large)
1
eminent(adjective, great, big, large, lofty)
1
enormous(unreasonable, extreme, extravagant, excessive, unwarranted)
1
enthusiastically
1
exaggerated(adjective, unreasonable, extreme, extravagant, extra)
1
expensive(adjective, unreasonable, exclusive, steep, classy)
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APASmart Define. (2015). sky-high thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sky-high/thesaurus/synonyms
ChicagoSmart Define. 2015. "sky-high thesaurus" https://smartdefine.org/sky-high/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, sky-high thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sky-high/thesaurus/synonyms>.
MLASmart Define. "sky-high thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/sky-high/thesaurus/synonyms>