0
precisely(adverb, unlikely, improbable, incredibly)
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very(adverb, unlikely, improbable, incredibly)
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agreed
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doubtless
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forever
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incontrovertibly
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incredibly
0
tally
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unbelievably
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uncertain(unmistakably, perceptibly, palpably)
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unimaginably
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11 years ago|548 views|share |citing 
APASmart Define. (2015). presumably thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/presumably/thesaurus/antonyms
ChicagoSmart Define. 2015. "presumably thesaurus" https://smartdefine.org/presumably/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, presumably thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/presumably/thesaurus/antonyms>.
MLASmart Define. "presumably thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/presumably/thesaurus/antonyms>