not shaken by thunder (成语 saw);the arrangements are unalterable; to adhere rigidly to regulations; will go ahead whatever happens (of an arrangement or plan)[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]