13
indefinite(adjective, complete, vague, unknown, unrestrained)
13
multitudinous(adjective, great, endless, considerable, myriad)
13
uncounted(adjective, end, limitless)
11
titanic(adjective, size, huge, vast, immense)
11
unfathomable(adjective, complete, deep, abundant, immense)
10
absolute(noun, adjective, end, complete, obscure)
10
bottomless(adjective, end, deep, immense, unlimited)
10
enormous(adjective, end, open, large, comfortable)
10
immortal(adjective, constant, abundant, unrestrained, endless)
10
inestimable(adjective, end, big, endless, immense)
10
myriad(noun, adjective, great, endless, considerable)
10
never-ending(adjective, end, constant, endless, boundless)
9
timeless(adjective, continuous, endless, boundless, everlasting)
9
uncountable(adjective, big, incalculable)
9
unnumbered(adjective, infinity)
8
untold(adjective, end, constant, monotonous, unrestrained)
8
ceaseless(adjective, constant, abundant, unrestrained, endless)
8
incessant(adjective, end, constant, abundant, endless)
8
sempiternal(adjective, end, limited, limitless, eternal)
8
unceasing(adjective, continuous, endless, unrelenting, boundless)
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APASmart Define. (2015). infinite thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/infinite/thesaurus/synonyms
ChicagoSmart Define. 2015. "infinite thesaurus" https://smartdefine.org/infinite/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, infinite thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/infinite/thesaurus/synonyms>.
MLASmart Define. "infinite thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/infinite/thesaurus/synonyms>