亙古不變 gèn gǔ bù biàn

DEFINITIONS

  1. unchanging since times immemorial (idiom)
  2. unalterable
  3. unvarying
  4. monotonous

CHARACTERS

亙 gèn extend across, through; from
古 gǔ old, classic, ancient
不 bù no, not; un-; negative prefix
變 biàn change, transform, alter; rebel