Sobersided, a word meaning serious or formal, has quite a few antonyms that represent the opposite meaning. Some of these antonyms include humorous, lighthearted, comedic, playful, jocular, and jovial. These words all bring to mind a sense of fun and levity, which is the polar opposite of the sober, serious demeanor represented by sobersided. Other antonyms for this word include carefree, easygoing, and relaxed, all of which connote a sense of freedom and a lack of constraint. By using these antonyms, writers and speakers can create contrast and variety in their language and tone, adding depth and nuance to their communication.