A pompous person can be described using several synonyms that effectively capture their haughty, arrogant, and overly self-important personality. One could call them a pretentious individual, a grandiose personality, an egotistical person, or a self-righteous type. Other word choices are conceited, ostentatious, vainglorious, or supercilious. Sometimes they come across as showy or boastful, while other times they appear vain and narcissistic. Such people have a tendency to speak highly of themselves, leading others to view them as overbearing and smug. In all, a pompous person can embody any of these traits, often leaving others feeling frustrated, annoyed, or drained in their presence.