• synonyms


  1. a positive statement or declaration, often without support or reason: a mere assertion; an unwarranted assertion.
  2. an act of asserting.
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Origin of assertion

1375–1425; late Middle English assercion < Latin assertiōn- (stem of assertiō). See assert, -ion
Related formsas·ser·tion·al, adjectivemis·as·ser·tion, nounnon·as·ser·tion, nouno·ver·as·ser·tion, nounre·as·ser·tion, nounsu·per·as·ser·tion, noun


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for reassertion


  1. a positive statement, usually made without an attempt at furnishing evidence
  2. the act of asserting
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for reassertion



early 15c., assercioun, from Middle French assertion (14c.) or directly from Late Latin assertionem (nominative assertio), noun of action from past participle stem of Latin asserere "claim rights over something, state, maintain, affirm," from ad- "to" (see ad-) + serere "join" (see series). By "joining oneself" to a particular view, one "claimed" or "maintained" it.

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Online Etymology Dictionary, © 2010 Douglas Harper