If something is bastardized, it has been changed in such a way that it no longer represents the values and qualities that it is intended to represent.

a bastardized form of the word/language 词汇/语言的混杂形式

The house was badly altered and so bastardized that it no longer reflected the architect’s style. 这座房子的改造工作做得很差，被改得乱七八糟，不再能够反映出建筑师的风格。