含蓄

hánxù
  1. to contain
  2. to hold
  3. (of a person or style etc) reserved
  4. restrained
  5. (of words, writings) full of hidden meaning
  6. implicit
  7. veiled (criticism)

CEDICT

Entry Composition

1 含 hán
  1. to keep in the mouth
  2. to contain
2 蓄 xù
  1. to store up
  2. to grow (e.g. a beard)
  3. to entertain (ideas)