noun
dressed up in fine clothes; in one's best clothes
Describes a person's appearance when wearing formal or celebratory attire, often for special occasions.
結婚式で、彼女の晴れ着姿はとても美しかった。
At the wedding, she looked very beautiful in her formal attire.
成人式には、みんな晴れ着姿で集まった。
Everyone gathered in their best clothes for the Coming of Age ceremony.
More general term for formal dress; 晴れ着姿 specifically evokes festive or celebratory attire.
Compound of 晴れ着 (formal clothes) and 姿 (appearance, figure).