棘手

jíshǒu
  1. thorny (problem)
  2. intractable

CEDICT

Entry Composition

1 棘 jí thorns
2 手 shǒu
  1. hand
  2. (formal) to hold
  3. person engaged in certain types of work
  4. person skilled in certain types of work
  5. personal(ly)
  6. convenient
  7. classifier for skill

classifiers: 雙, 隻