64 entries under massive topic. ×

20
immeasurable(adjective, great, big, large, fat)
20
infinite(adjective, end, big, large, comfortable)
20
giant(adjective, great, big, large, size)
18
Brobdingnagian(adjective, big, large, huge, vast)
17
extensive(adjective, great, big, large, huge)
15
limitless(adjective, big, large, comfortable, absolute)
13
measureless(adjective, big, large, absolute, huge)
12
endless(adjective, big, large, comfortable, huge)
12
incalculable(adjective, absolute, huge, unrestrained, vast)
12
whopping(adjective, great, slang, big, large)
11
towering(adjective, strong, great, powerful, high)
11
unbounded(adjective, big, large, absolute, huge)
10
awesome(adjective, great, superb, wonderful, job)
9
illimitable(adjective, big, large, absolute, huge)
9
super(adjective, cool, great, big, superb)
5
eternal(adjective, large, absolute, huge, vast)
4
extreme(adjective, great, high, huge, greatness)
4
gross(adjective, big, large, huge, vast)
3
lofty(adjective, great, big, high, large)
3
excessive(adjective, great, big, high, huge)
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APASmart Define. (2016). immense thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/immense/thesaurus/synonyms
ChicagoSmart Define. 2016. "immense thesaurus" https://smartdefine.org/immense/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, immense thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immense/thesaurus/synonyms>.
MLASmart Define. "immense thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/immense/thesaurus/synonyms>