The term 'overly presumptuous' can be summarized by two crossword solutions: UPPITY (6 letters) and WAYOUTOFLINE (12 letters). UPPITY is an adjective used to describe someone who is arrogant or overly proud of themselves. Wayoutofline is a phrase used to describe someone who is behaving in a way that is not socially acceptable. Both words imply that the person is being overly presumptuous, or acting as if they are more important than they actually are.