Swollenheaded is an adjective used to describe people who are excessively proud, arrogant, or conceited. The opposite of this word would be modest, humble, or unassuming. Modest describes individuals who are not excessively boastful, humble means people who are not proud or egotistical, and unassuming refers to people who are not ambitious or vain. These antonyms provide a sense of balance and generosity which can help individuals avoid the negative traits associated with being swollenheaded. In short, while swollenheaded individuals are typically disliked, those who are humble, modest, and unassuming are often respected and appreciated for their qualities.