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 Rather than relying on assumptions about comfort, the structure adjusts itself quietly across changing requirements. —

Lyssanoel Frater, USA Today, 13 May 2026 Departments end up working from slightly different assumptions about what the match is supposed to be. —

Shivaas Gulati, Sportico.com, 12 May 2026 The assumption may have been that the tournament’s main commercial partners, such as Visa and McDonald’s, would also strike deals with local cities. —

Henry Grabar, The Atlantic, 12 May 2026 This additional assumption is usually taken for granted. —

Ben Brubaker, Quanta Magazine, 11 May 2026 See All Example Sentences for assumption

Recent Examples of Synonyms for assumption

Noun

This is as important, and as boring, in theory, as picking a fund for your 401(k), yet, improbably, the draft has become one of the largest events on the sporting calendar.

— Dan Greene, New Yorker, 18 May 2026
To overcome this problem, the study authors used a mathematical framework called the theory of functional connections (TFC).

— Rupendra Brahambhatt, Interesting Engineering, 17 May 2026