不啻天淵 bù chì tiān yuān

DEFINITIONS

  1. no less than from heaven to the abyss (idiom); differing widely
  2. worlds apart
  3. the gap couldn't be bigger

CHARACTERS

不 bù no, not; un-; negative prefix
啻 chì only, merely; just like; stop at
天 tiān sky, heaven; god, celestial
淵 yuān gulf, abyss, deep