ASSUMPTION Synonyms: 137 Similar and Opposite Words

assumption

noun

ə-ˈsəm(p)-shən

as in theory

something taken as being true or factual and used as a starting point for a course of action or reasoning the widespread assumption that violent entertainment leads to violent behavior in children your argument is faulty because it's based on erroneous assumptions

Synonyms & Similar Words

Relevance

as in arrogance

an exaggerated sense of one's importance that shows itself in the making of excessive or unjustified claims his air of assumption tended to put people off rather quickly

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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Recent Examples of assumption Now, a new discovery in the far reaches of our solar system is challenging that assumption. —

Eric Lagatta, USA Today, 6 May 2026 Change a single assumption about how quickly AI chips become obsolete, and cumulative spending swings by hundreds of billions of dollars. —

Nick Lichtenberg, Fortune, 6 May 2026 But society still largely operates on the assumption that child rearing is the responsibility of the mother—and all messaging is directed accordingly. —

Literary Hub, 5 May 2026 But for this period of time, there were assumptions that were getting made that were not foolhardy, completely. —

Gene Maddaus, Variety, 4 May 2026 See All Example Sentences for assumption

Recent Examples of Synonyms for assumption

Noun

The adult world is studied and emulated in a manner that suggests praxis but no theory.

— Anna Wiener, New Yorker, 4 May 2026
There is one theory that people may outlive their physical bodies but there may be a way to upload their consciousness into a digital realm where human existence could go on indefinitely.

— John Ramos, CBS News, 3 May 2026