50 entries under vast topic. ×

12
incalculable(adjective, absolute, huge, unrestrained)
11
bulky(adjective, person, body, strong, great)
11
towering(adjective, strong, great, powerful, high)
11
unbounded(adjective, big, large, absolute, huge)
9
illimitable(adjective, big, large, absolute, huge)
9
super(adjective, cool, great, big, superb)
8
innumerable(adjective, infinite, boundless, unlimited)
7
inexhaustible(adjective, absolute, endless, infinite)
7
unfathomable(adjective, endless, infinite, boundless)
6
untold(adjective, absolute, unrestrained, endless)
5
eternal(adjective, large, absolute, huge)
5
fantastic(adjective, superb, wonderful, job, marvelous)
5
king-size(adjective, huge, copious)
4
gross(adjective, big, large, huge)
4
high(adjective, strong, great, heavy, powerful)
3
copious(adjective, great, big, large, huge)
3
unending(adjective, absolute, endless, infinite)
3
without end(expression, idiom, absolute, endless)
3
without limit(expression, adjective, idiom, absolute)
2
extravagant(adjective, great, big, superb, wonderful)
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APASmart Define. (2016). immense thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/immense/thesaurus/synonyms
ChicagoSmart Define. 2016. "immense thesaurus" https://smartdefine.org/immense/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, immense thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/immense/thesaurus/synonyms>.
MLASmart Define. "immense thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/immense/thesaurus/synonyms>