幽思

yōusī
  1. deep contemplation; melancholy brooding
  2. to ponder; to muse; to meditate

Wiktionary

Entry Composition

1 幽 yōu
  1. remote
  2. hidden away
  3. secluded
  4. serene
  5. peaceful
  6. to imprison
  7. in superstition indicates the underworld
  8. ancient district spanning Liaonang and Hebei provinces
=2 思 sī
  1. to think
  2. to consider
=2 思 sāi
  1. (obsolete on its own in Standard Chinese) alternative form of 䰄 (“heavily bearded”)
  2. alternative form of 䰄 (“heavily bearded”)