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up- - definition and synonyms

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prefix     up- pronunciation in American English
  1. 1
    in or going toward a position that is higher or farther north: used with some adjectives, nouns, and adverbs

    She went upstairs.

  2. 2
    more modern or fashionable: used with some adjectives, nouns, and verbs

    an upscale vacation rental (=expensive and of high quality)

    a computer upgrade

  3. 3
    happier, or more exciting: used with some adjectives, nouns, and verbs

    She seems much more upbeat (=much happier).

    I was uplifted by the experience.

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  4. 4
    moved or changed completely: used with some adjectives, nouns, and verbs

    He uprooted his family and moved to Canada.

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

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Dunning-Kruger effect

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

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