26 entries under immense topic. ×

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numberless(infinite, boundless, unlimited, incomprehensible)
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uncalculable(adjective, infinite, boundless, unlimited)
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undefined(adjective, infinite, boundless, unlimited)
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unending(infinite, boundless, unlimited, unbounded)
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unfathomable(adjective, infinite, boundless, unlimited)
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untold(infinite, boundless, unlimited, unbounded)
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APASmart Define. (2015). wide-open thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/wide-open/thesaurus/synonyms
ChicagoSmart Define. 2015. "wide-open thesaurus" https://smartdefine.org/wide-open/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, wide-open thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/wide-open/thesaurus/synonyms>.
MLASmart Define. "wide-open thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/wide-open/thesaurus/synonyms>