that cannot be changed; that will never change synonym unchangeable不可改变的;永恒不变的 This decision should not be seen as immutable. 不该把这个决定看作是不可改变的。
Oxford Collocations DictionaryImmutable is used with these nouns:- truth
Word Originlate Middle English: from Latin immutabilis, from in- ‘not’ + mutabilis, from mutare ‘to change’.