presumptuousness

Definitions of presumptuousness
  1. noun
    audacious (even arrogant) behavior that you have no right to
    “he despised them for their presumptuousness
    synonyms: assumption, effrontery, presumption
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    types:
    uppishness, uppityness
    assumption of airs beyond one's station
    type of:
    audaciousness, audacity
    aggressive boldness or unmitigated effrontery
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