Synonyms|504Antonyms|161|Broader|9Narrower|15Related|748

62 entries under immense topic. ×

2
unmeasurable(unreasonable, extreme, extravagant, excessive, unwarranted)
1
amaranthine(constant, abundant, unrestrained, endless)
1
capricious(adjective, uncertain, unpredictable, vast)
1
deathless(constant, abundant, unrestrained, supreme)
1
expanded(big, large, grand, huge, major)
1
giant(huge, vast, massive)
1
monotonous(constant, abundant, unrestrained, endless)
1
multitudinous(adjective, constant, abundant, unrestrained)
1
no holds barred(expression, adjective, idiom, limit, endless)
1
prolonged(slow, boring, tedious, late, huge)
1
self-perpetuating(constant, abundant, unrestrained, endless)
1
unbroken(constant, abundant, unrestrained, endless)
1
undivided(constant, abundant, unrestrained, endless)
1
undying(constant, abundant, unrestrained, endless)
1
uninterrupted(constant, abundant, unrestrained, endless)
1
unsurpassable(constant, abundant, unrestrained, endless)
1
wide open(expression, adjective, complete, limit, absolute)
0
full-out(adjective, complete, absolute, unrestrained, extensive)
0
uncalculable(infinite, unlimited, incomprehensible, unbounded)
0
unfathomed(adjective, complete, absolute, unrestrained, extensive)
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ChicagoSmart Define. 2015. "boundless thesaurus" https://smartdefine.org/boundless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, boundless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/boundless/thesaurus/synonyms>.
MLASmart Define. "boundless thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/boundless/thesaurus/synonyms>