assertion
Americannoun
-
a positive statement or declaration, often without support or reason.
a mere assertion;
an unwarranted assertion.
- Synonyms:
- allegation, contention, claim
-
an act of asserting.
noun
-
a positive statement, usually made without an attempt at furnishing evidence
-
the act of asserting
Other Word Forms
- assertional adjective
- misassertion noun
- nonassertion noun
- overassertion noun
- reassertion noun
- superassertion noun
Etymology
Origin of assertion
1375–1425; late Middle English assercion < Latin assertiōn- (stem of assertiō ). See assert, -ion
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Trump’s assertion that the talks were productive was met with pushback from Iranian officials, who denied that the discussions were taking place.
From The Wall Street Journal • Mar. 24, 2026
In a filing, the Justice Department accepted a court’s appointment of Robert Frazer as head of New Jersey’s U.S. attorney’s office, an abrupt reversal of its assertion that courts have no such power.
From Slate • Mar. 24, 2026
You might roll your eyes at the quasi-hippie assertion, but 100 pages later, you will nod your head sagely in agreement.
From Salon • Mar. 24, 2026
There’s a lot of data that backs this assertion up.
From Barron's • Mar. 11, 2026
Taken literally, this assertion seems implausible, and historians’ skepticism seems merited.
From "1491" by Charles C. Mann
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
