5
immeasurable(adjective, infinite, incalculable)
4
imperceptible
4
unrelatable
2
abysmal
2
boundless(adjective, little, restricted)
2
illimitable
2
immensurable
2
in mind
2
indeterminate(adjective, uncertain, definite, vague)
2
infinite(adjective, end, limitless)
2
insignificant
2
limitless(limited, little)
2
unmeasurable
1
bottomless(adjective, deep)
1
countless(adjective, innumerable)
1
endless
1
immense(adjective, little, tiny)
1
incalculable(adjective, limitless, countless)
1
indefinite
1
measureless
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APASmart Define. (2015). measurable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/measurable/thesaurus/antonyms
ChicagoSmart Define. 2015. "measurable thesaurus" https://smartdefine.org/measurable/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, measurable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/measurable/thesaurus/antonyms>.
MLASmart Define. "measurable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/measurable/thesaurus/antonyms>