1. showing excessive confidence or boldness; taking liberties without permission or justification

Examples

• It would be presumptuous of me to offer advice without knowing all the facts.
• The new employee made presumptuous demands during his first week.
• She found his presumptuous behavior at the dinner party quite rude.
• It’s presumptuous to assume everyone shares your political views.
• The presumptuous young man interrupted the CEO during the meeting.
• Don’t be presumptuous and take my silence as agreement.