喜笑颜开 xǐ xiào yán kāi

DEFINITIONS

  1. grinning from ear to ear (idiom)
  2. beaming with happiness

CHARACTERS

喜 xǐ like, love, enjoy; joyful thing
笑 xiào smile, laugh, giggle; snicker
颜 yán face, facial appearance
开 kāi open; initiate, begin, start