偶然

ǒurán
  1. incidentally
  2. occasional
  3. occasionally
  4. by chance
  5. randomly

CEDICT

Entry Composition

1 偶 ǒu
  1. accidental
  2. image
  3. pair
  4. mate
2 然 rán
  1. correct
  2. right
  3. so
  4. thus
  5. like this
  6. -ly