egotistical

bigheaded boastful bumptious cocky/cocksure cocky cockier cockier cockiest cockiest dogmatic egoistic egoistical egocentric egomaniacal egotistic haughtiest high and mighty haughty high-and-mighty individualistic misanthropic more cocksure more egotistic more egoistic most cocksure most egotistic most egoistic narcissistic overweening prideful proudest prouder proud self-absorbed self-centered self-important self-involved self-righteous self-respecting selfish self-seeking self-serving smug snooty snootiest swellheaded vainglorious