1
as in hypotheses
an idea that is the starting point for making a case or conducting an investigation
my supposition is that this grape variety, which flourishes in southern France, should do equally well here, given the similar climate
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Antonyms & Near Antonyms
2
as in guesses
an opinion or judgment based on little or no evidence
it's pure supposition on your part that there's something illegal going on next door
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3
as in assumptions
something taken as being true or factual and used as a starting point for a course of action or reasoning
worthless genetic research that was based on the erroneous supposition that acquired characteristics can be passed on to offspring
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Example Sentences
Recent Examples of Synonyms for suppositions
Noun
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Present hypotheses, actions and experiments.—
Expert Panel®,
Forbes,
10 Mar. 2025 -
Still, experts have some hypotheses on how parenting could improve brain health.—
Jillian Pretzel,
Parents,
7 Mar. 2025
Noun
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Leaders are now compelled to reassess their foundational assumptions, as geopolitical risk increasingly impacts economic stability, regulatory environments, and market access.—
Bryce Hoffman,
Forbes,
23 Mar. 2025
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Originally developed within military and intelligence communities, red teaming is a structured approach designed to challenge assumptions, expose blind spots, and stress-test strategies through adversarial thinking and critical analysis.—
Bryce Hoffman,
Forbes,
23 Mar. 2025
Noun
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Abundant theories are floating here and there.—
Lance Eliot,
Forbes,
8 Jan. 2025
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Previous theories about the eruption indicated its source was much closer to the equator, and the Babuyan Claro volcano in the Philippines had been considered a leading candidate.—
Eli Wizevich,
Smithsonian Magazine,
8 Jan. 2025
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Cite this Entry
“Suppositions.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/suppositions. Accessed 12 Aug. 2025.
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