know it all on purple

blue background purple expert knowledge arrogant conceited overconfident superior self-assured overbearing know-it-all attitude self-proclaimed omniscient opinionated patronizing arrogance ego boastful impressive bragging overestimating self-important pretentious dominant smarty-pants egocentric overstating overwhelming dominating pompous condescending superiority complex behavior demeanor braggart skills egotistical manner egoistic behavior