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extent - definition and synonyms

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noun     extent pronunciation in American English
  1. 1
    [uncountable] the size and importance of a problem or situation
    extent of:

    We were shocked by the extent of the damage.

    The government underestimated the extent of the contamination.

    the full/true extent:

    Doctors still do not know the full extent of his injuries.

  2. 2
    [singular/uncountable] the degree to which something happens or is likely to happen
    the extent to which:

    The extent to which your diet is successful depends on your willpower.

    Languages vary in the extent to which they rely on word order.

  3. 3
    [uncountable] the size or area of something

    Open the table to its fullest extent.

    in extent:

    almost an acre in extent



to manipulate someone psychologically so that they begin to question their own perceptions and memories

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Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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