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.
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
An assertion is not worth making unless it is smothered in phrases like “it is worth noting,” “importantly,” or “generally speaking.”
From The Wall Street Journal • Mar. 5, 2026
Indeed, in a letter to Congress on Monday justifying the war, Trump himself makes no such assertion.
From Slate • Mar. 4, 2026
While that last assertion is partly bravado, there was much truth in it, for Ann felt acutely the responsibility her new influence brought.
From "The Best of Enemies" by Osha Gray Davidson
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.
