一成不變

The number one; single; a; as soon as; entire; whole; all; a "one" radical in Chinese characters; also used for clarity when spelling out numbers.

To succeed; to finish; to complete; to accomplish; to become; to turn into; to be all right; OK!; surname Cheng; classifier for tenths.

Function word; no; not; un-; negative prefix; used to form questions or emphasize a statement; sometimes used for rhythm.

To change or transform into something different; to vary; to alter; a rebellion or sudden disturbance; strange or peculiar.