不变

Traditional form:

不變

Pinyin (reading):

bùbiàn

Definitions:

• constant
• unvarying
• (math.) invariant

Characters:

• 不 - no, not, un-; negative prefix
• 变 - to change, to transform, to alter; rebel

Traditional characters:

• 不 - no, not, un-; negative prefix
• 變 - to change, to transform, to alter; rebel