swollen-headed s characteristic of false pride; having an exaggerated sense of self-importance growing ever more swollen-headed and arbitrary Usage(s) Hit a button labeled INSULT ME AGAIN and it unleashes vitriolic phrases like "You extra-large aggressor!" and "You swollen-headed warmonger!". Hit a button labeled INSULT ME AGAIN and it unleashes vitriolic phrases like "You extra-large aggressor!" and "You swollen-headed warmonger!". Synonym(s) conceited egotistic egotistical self-conceited swollen vain