Definition of assertion in English:



  • 1A confident and forceful statement of fact or belief.

    with clause ‘his assertion that his father had deserted the family’
    • ‘I politely disagree with the assertion that it was didactic and lengthy.’
    • ‘In practice, there are many venture capitalists who will protest the assertion that all they want is to make a quick buck.’
    • ‘This has lead to the assertion that a butterfly flapping its wings in Japan may affect the weather in Europe within a week or two.’
    • ‘He is criticizing the assertion that to weigh more than that is to be obese.’
    • ‘As for her assertion that our community leaders are working towards cohesion, I should think they are!’
    • ‘This disproves the assertion that tyranny is impossible to impose on an armed population.’
    • ‘The working class at home is beginning to be starved, and is being buoyed up with the assertion that this is the last great war.’
    • ‘If not, doesn't this simply verify the assertion that such orders are a joke in this Internet age?’
    • ‘Imposing such a ban requires far more compelling logic than the assertion that we should not play God.’
    • ‘For the record, in case anyone is thinking it, the assertion that women are worse at maths is also utter rubbish.’
    • ‘Free will, as I understand it, is the assertion that a person is the cause of their own actions.’
    • ‘For once the assertion that this is television that will ask questions seems very likely to be true.’
    • ‘It is usually regarded as an assertion that we are all the same under the skin.’
    • ‘Moreover, the assertion that moral agency confers special moral status is itself quite debatable.’
    • ‘Finally, the assertion that everything happens by necessity seems to leave the whole of morality in doubt.’
    • ‘This amounts, of course, to an assertion that we can easily put aside economic law.’
    • ‘There may be room for the assertion that the bailiff was not tactful and that his firmness and size intimidated those in that room.’
    • ‘That can be the only basis for the assertion that the safety issue is a myth.’
    • ‘This is the polite version of the assertion that there is nothing so absurd that some philosopher has not said it.’
    • ‘Each time he gets a black cube it confirms the assertion that all six cubes are black.’
    declaration, contention, statement, claim, submission, postulation, averment, opinion, proclamation, announcement, pronouncement, assurance, attestation, affirmation, protestation, profession, swearing, insistence, avowal
    View synonyms
    1. 1.1mass noun The action of asserting something.
      ‘the assertion of his legal rights’
      • ‘While this assertion appears disarmingly simple, it is profound in its implications.’
      • ‘The falsity of this assertion would have been found if it had been checked.’
      • ‘Many would no doubt take issue with me on that simple assertion, citing personal reasons why it is not so.’
      • ‘The events since the last two elections support this assertion, a point to which I will return.’
      • ‘Experiments conducted in the field and the lab are a major basis for this assertion.’
      • ‘Anyone who disagrees with this assertion should of course be ready for my temper tantrum.’
      • ‘A rescue operation in May this year brutally revealed the truth of this assertion.’
      • ‘I showed that none of the archival references in her footnotes supported this assertion.’
      • ‘Whether this assertion is accurate is of course a different matter.’
      • ‘If one rejects that assertion, does the imperialism of human rights really sound so bad?’
      • ‘Almost every assertion is backed by a sackful of evidence, statistics or relevant quotations.’
      • ‘At the function that I attended, too, a number of articles spoke of this assertion on their past.’
      • ‘It is this assertion which will be tested in a referendum vote, probably next March.’
      • ‘That was a novel and quite astounding assertion at that stage of human legal development.’
      • ‘The amount of water used to put out the twelve minute bonfire proves this assertion.’
      • ‘No documentation was produced to verify that assertion, nor was her son called as a witness at trial.’
      • ‘This last assertion is one of the simplest paradoxes of liberalism.’
      • ‘The critical question, in relation to the appeal, is whether this assertion is correct.’
      • ‘Any objective scrutiny of the list of banned organisations makes a mockery of this last assertion.’
      • ‘Nor has any evidence been made public as of this writing to justify the prime minister's assertion.’
      defence, upholding
      View synonyms


Late Middle English: from Latin assertio(n-), from the verb asserere (see assert).