1
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
2
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
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 assumption
The team worked from the assumption that model performance would be primarily affected by the noise-batch ratio, which compares the volume of randomized noise to the size of the original training data.
—
Ashley Belanger, ArsTechnica, 15 Sep. 2025
And then there’s the assumption that every actor must have stacks of money and that everything is done for them.
—Baz Bamigboye, Deadline, 5 Sep. 2025
Departments often work from different metrics, assumptions, and roadmaps.
—Sheryl Estrada, Fortune, 4 Sep. 2025
The width of certain spectral lines—fingerprints of the light emitted during flares—has long been wider than expected based on standard temperature assumptions.
—Melissa Fleur Afshar, MSNBC Newsweek, 3 Sep. 2025
See All Example Sentences for assumption
Ashley Belanger, ArsTechnica, 15 Sep. 2025
And then there’s the assumption that every actor must have stacks of money and that everything is done for them.
—Baz Bamigboye, Deadline, 5 Sep. 2025
Departments often work from different metrics, assumptions, and roadmaps.
—Sheryl Estrada, Fortune, 4 Sep. 2025
The width of certain spectral lines—fingerprints of the light emitted during flares—has long been wider than expected based on standard temperature assumptions.
—Melissa Fleur Afshar, MSNBC Newsweek, 3 Sep. 2025
See All Example Sentences for assumption
Recent Examples of Synonyms for assumption
Noun
-
The most effective education models are those that blend theory with real-world practice.—
Sanjay Srivastava,
Forbes.com,
10 Sep. 2025
-
Testing particle physics theories, the $8 billion LHC was composed of superconducting magnets that allowed scientists to study subatomic particles including protons, electrons, quarks and photons.—
Lorenzino Estrada,
AZCentral.com,
10 Sep. 2025
Noun
-
Mitchell prides himself on being a no-nonsense, no-bulls*** kind of man, but his attitude can sometimes come across as arrogance.—
George Caulkin,
New York Times,
11 Sep. 2025
-
This arrogance is not just limited to tech titans.—
Christian Josi,
Boston Herald,
31 Aug. 2025
Noun
-
Brands without off-premise or digital channels may see traffic slip in unfavorable weather or during demand shifts.—
Gary Occhiogrosso,
Forbes.com,
15 Sep. 2025
-
But the premise is more or less an excuse to make monologue jokes, which Bargatze did about everything from Severance’s confusing story line to the decidedly noneducational programming offered on the Learning Channel.—
Hershal Pandya,
Vulture,
15 Sep. 2025
Noun
-
Timothy Olyphant, again, sells the superiority well.—
Noel Murray,
Vulture,
10 Sep. 2025
-
Originally from Ohio, Howard would whisper-speak his lectures to a crowded room, describing with fatigued superiority people (including his family) who couldn’t properly appreciate Nijinsky.—
Rivka Galchen,
New Yorker,
6 Sep. 2025
Noun
-
Investigators initially had 12 hypotheses about what caused the deadly collapse, per The Miami Herald.—
Madison E. Goldberg,
PEOPLE,
10 Sep. 2025
-
However, despite the appeal of this coevolution hypothesis, the evidence remains largely circumstantial.—
Pranjal Malewar,
New Atlas,
7 Sep. 2025
Noun
-
The Two Hearts Of A New MacBook Apple has been reluctant to feed these demands over the last decade, but there are signs that the attitude is thawing.—
Ewan Spence,
Forbes.com,
14 Sep. 2025
-
The attitude of last season has vanished, replaced by that performative pregame dustup as Texas A&M headed toward its locker room.—
Pete Sampson,
New York Times,
14 Sep. 2025
Noun
-
Her bold spirit and belief in God's guidance have propelled her to pursue various impactful ventures.—
Jonathan Limehouse,
USA Today,
13 Sep. 2025
-
Likewise, endorsing the belief that a college degree is important for economic success is different than agreeing that the typical college curriculum equips students with essential job skills.—
Michael T. Nietzel,
Forbes.com,
13 Sep. 2025
Noun
-
Re-examining every new regulation introduced over the last 10 years with a presumption to repeal, unless there is an overwhelming justification for maintaining a regulation.—
Alden Abbott,
Forbes.com,
11 Sep. 2025
-
Without an indictment, and the evidence supporting it, we're left with little more than presumptions.—
Isaac Saul,
MSNBC Newsweek,
1 Sep. 2025
Cite this Entry
“Assumption.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assumption. Accessed 17 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share