晴はれ着ぎ

noun

one's best clothes; Sunday best; formal wear

Refers to one's finest, most formal clothing, typically worn for special occasions like ceremonies, celebrations, or important events. Often implies traditional Japanese attire, but can also refer to Western formal wear.

• 成せい人じん式しきには、多おおくの女じょ性せいが華はなやかな晴はれ着ぎを着きる。

  Many women wear gorgeous formal kimono for the Coming of Age ceremony.

• 彼かれは結けっ婚こん式しきのために新あたらしい晴はれ着ぎを買かった。

  He bought new formal clothes for the wedding.