4
illimitable(adjective, complete, deep, immense, infinite)
4
incalculable(adjective, complete, deep, absolute, immense)
4
innumerable(adjective, immense, infinite, boundless, unlimited)
4
vast(adjective, deep, immense, infinite, unlimited)
3
countless(adjective, vast, endless, immense, infinite)
3
indefinite(adjective, vast, endless, immense, infinite)
3
interminable(adjective, absolute, endless, immense, infinite)
3
liberal
3
measureless(adjective, absolute, vast, endless, immense)
3
numberless(adjective, absolute, endless, immense, infinite)
3
unbounded(adjective, absolute, vast, endless, immense)
3
unsounded
3
yawning(adjective, depth)
2
bountiful
2
ceaseless(adjective, certain, reliable, trustworthy, endless)
2
eternal(adjective, infinite)
2
everlasting(adjective, infinite)
2
exotic
2
immense(adjective, absolute, vast, endless, infinite)
2
nude
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APASmart Define. (2015). bottomless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/bottomless/thesaurus/synonyms
ChicagoSmart Define. 2015. "bottomless thesaurus" https://smartdefine.org/bottomless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, bottomless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/bottomless/thesaurus/synonyms>.
MLASmart Define. "bottomless thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/bottomless/thesaurus/synonyms>