变幻莫测

變幻莫測
biànhuànmòcè
  1. to change unpredictably
  2. unpredictable
  3. erratic
  4. treacherous

CEDICT

Entry Composition

1 变幻 biànhuàn
  1. to change irregularly
  2. to fluctuate
2 莫 mò
  1. do not
  2. there is none who
3 测 cè
  1. to survey
  2. to measure
  3. to conjecture