3
astronomical
3
big(great, huge, vast, immense, copious)
3
exhaustless
3
giant(adjective, great, big, huge, vast)
3
humongous(adjective, great, big, huge, vast)
3
jumbo(adjective, great, big, huge, vast)
3
never-ending(adjective, endless, immense, infinite, boundless)
3
unplumbed
3
without end(expression, idiom, constant, absolute, abundant)
3
without limit(expression, adjective, idiom, vast, endless)
2
Herculean(adjective, huge, vast, copious)
2
abyssal(adjective, unfathomable)
2
capacious(adjective, great, big, huge, immense)
2
ceaseless(adjective, constant, abundant, unrestrained, endless)
2
considerable(adjective, great, big, huge, vast)
2
cyclopean
2
elephantine(adjective, huge, vast, massive, enormous)
2
extreme
2
fathomless(adjective, incalculable)
2
goodly(great, big, huge)
11 years ago|12k views|share |citing 
APASmart Define. (2015). immeasurable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/immeasurable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immeasurable thesaurus" https://smartdefine.org/immeasurable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, immeasurable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/immeasurable/thesaurus/synonyms>.
MLASmart Define. "immeasurable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/immeasurable/thesaurus/synonyms>