Something declared or stated positively, often with no support or attempt at proof.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "assertion" in a sentence
"The latter assertion, however, is a _mere assertion_; necessary, perhaps, for the theory of"
"While tempted, my main assertion is that one must not confuse or conflate the respective purposes of education and employment."
"And the proof of your assertion is the great show of enthusiasm the socialist stock market is making for this Great Leap Forward by pouring its soon to be voided currency of the pre-socialist USA into shares of the soon to be worthless health insurers."