21
limitless(adjective, great, big, limited, constant)
17
immeasurable(adjective, great, big, limited, constant)
15
boundless(adjective, limit, limited, constant, endless)
15
unlimited(adjective, complete, big, limited, constant)
14
infinite(adjective, end, great, big, limited)
14
measureless(adjective, great, big, limited, constant)
13
endless(adjective, great, big, limited, huge)
13
unbounded(adjective, great, big, limited, constant)
11
incalculable(adjective, constant, absolute, huge, monotonous)
11
interminable(adjective, complete, constant, absolute, endless)
10
immense(adjective, big, large, absolute, huge)
10
unmeasured(adjective, infinity)
9
countless(adjective, complete, endless, immense, infinite)
9
inexhaustible(adjective, absolute, vast, endless, immense)
9
innumerable(adjective, vast, immense, infinite, boundless)
9
unfathomable(adjective, complete, deep, endless, immense)
8
eternal(adjective, pause, constant, absolute, endless)
8
perpetual(adjective, constant, absolute, abundant, endless)
7
termless(adjective, infinite, infinity)
6
numberless(adjective, complete, absolute, endless, immense)
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APASmart Define. (2015). illimitable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/illimitable/thesaurus/synonyms
ChicagoSmart Define. 2015. "illimitable thesaurus" https://smartdefine.org/illimitable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, illimitable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/illimitable/thesaurus/synonyms>.
MLASmart Define. "illimitable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/illimitable/thesaurus/synonyms>