The phrase "more buttoned-down" typically refers to a person or style that is conservative, restrained, or formal. Antonyms for this term may include free-spirited, casual, unconventional, or relaxed. Someone who is free-spirited is likely to prioritize individuality and self-expression over conforming to society's norms. A casual style is characterized by comfortable and practical clothing choices, often associated with leisure activities. Unconventional styles may feature bold colors, patterns, or unusual shapes that stand out from traditional fashion choices. Finally, a relaxed style suggests an easy-going, laid-back approach to fashion and life. Each of these terms reflects a different fashion philosophy, reflecting a range of personalities and values.