喜不自禁

xǐbùzìjīn
unable to contain one's joy (idiom)

CEDICT

高兴得不得了。

重編國語辭典

Entry Composition

1 喜 xǐ
  1. to be fond of
  2. to like
  3. to enjoy
  4. to be happy
  5. to feel pleased
  6. happiness
  7. delight
  8. glad
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 自 zì
  1. (bound form) self; oneself
  2. from; since
  3. naturally; as a matter of course
4 禁 jīn to endure

Related entries

喜不自胜 xǐbùzìshèng unable to contain one's joy (idiom)