SUPPOSITIONS Synonyms: 71 Similar and Opposite Words

suppositions

noun

plural of supposition

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

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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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

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of suppositions Many are leaning into their own unsubstantiated suppositions, even those not backed by evidence. — Rebekah Riess, CNN Money, 22 Aug. 2026 Now Kennedy took her suppositions even further, reexamining the literature on a famous Olmec site where thousands of toad skeletons had been excavated. — Kimon De Greef, Longreads, 4 Aug. 2026 The past eight months have exposed both suppositions. — Liam Twomey, New York Times, 11 Mar. 2026 As Jackie herself once reminded John, a Kennedy has no choice but to accept that the press and public will speculate, interpret, exaggerate, and invent notions about them based on their own suppositions. — Rafaela Bassili, Vulture, 27 Feb. 2026 O'Donnell took further issue with her feeling that Hasselbeck didn't defend her against suppositions that O'Donnell was un-American for her opposition to military advances. — Joey Nolfi, Entertainment Weekly, 7 Oct. 2025 One of the big suppositions behind the big data center boom is that the most cutting edge AI models will be at least as large, if not larger, than the leading models that exist today. — Jeremy Kahn, Fortune, 3 Sep. 2025 She’s bemused by suppositions about the advantages of her family legacy, which in reality boasts a centuries-deep ledger of addiction, estrangement, and untimely death. — Holden Seidlitz, New Yorker, 5 Aug. 2025 But that premise assumes two suppositions not in evidence. — Andre Mouchard, Oc Register, 4 Aug. 2025

Recent Examples of Synonyms for suppositions

Noun

The models have to suss them out by taking actions in the game, seeing what happens, forming hypotheses, and then taking more actions to test those theories.

— Jeremy Kahn, Fortune, 18 Aug. 2026
Microsoft is already deploying autonomous threat-detection capabilities capable of continuously investigating incidents, developing hypotheses, gathering supporting evidence and identifying malicious activity that traditional processes can miss.

— Emil Sayegh, Forbes.com, 10 Aug. 2026

Definition of hypotheses

Noun

These outsiders, like executives or academics from different fields, offer crucial external perspectives, unburdened by internal assumptions or politics.

— Benjamin Laker, Forbes.com, 23 Aug. 2026
The company says that mission demonstrated that data center-grade computing hardware could operate in orbit, where conventional assumptions about cooling, radiation and power management no longer apply.

— Bojan Stojkovski, Interesting Engineering, 23 Aug. 2026

Definition of assumptions

Noun

Without a direct and blanket statement in the tradition providing a rationale, European and Indian scholars have proposed a variety of theories to explain Hindu divine morphology.

— Charles Preston, Encyclopedia Britannica, 28 Aug. 2026
Astrophysicists have several theories for what dark matter could be.

— Noah Haggerty, Los Angeles Times, 28 Aug. 2026

Definition of theories

Noun

Some prediction market companies have received unflattering media headlines based on false premises—Kalshi doesn’t take bets directly involving war or wildfires despite substantial news coverage suggesting otherwise.

— Dan Bernstein, Sportico.com, 24 Aug. 2026
What is sophistic is therefore to let the movement from sentience to moral status and then from moral status to legal rights happen without making visible the additional premises that are necessary at each stage.

— Hamilton Mann, Forbes.com, 23 Aug. 2026

Definition of premises

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suppositional

suppositions

suppositious

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“Suppositions.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/suppositions. Accessed 31 Aug. 2026.

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Synonyms of suppositions

noun

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