居然

jūrán
  1. unexpectedly
  2. to one's surprise
  3. go so far as to

CEDICT

Entry Composition

1 居 jū
  1. to reside
  2. to be (in a certain position)
  3. to store up
  4. to be at a standstill
  5. residence
  6. house
  7. restaurant
  8. classifier for bedrooms
2 然 rán
  1. correct
  2. right
  3. so
  4. thus
  5. like this
  6. -ly