1. 不可修改：required 必填内容 | unchangeable 不可修改 | showinthread 在帖子中显示

2. 不变的：unchancy 不幸的 | unchangeable 不变的 | unchangeableness 不变

3. unchangeable是什么意思

3. 不能改变的/不变的：unmanageable难管理的/难控制的 | unchangeable不能改变的/不变的 | unnecessary不必要的/多余的

4. unchangeable

4. (形)不变的：My first failure only intensified my desire to s... | 6.invariable: always the same; not changing; unchangeable; constant(opp inconstant) (形)不变的 | After dinner it was his invariable habit to make a...

1. 不可改变的；不容更改的
    Something that is unchangeable cannot be changed at all.

    e.g. The doctrine is unchangeable.
           这一信条不容改变。
    e.g. ...a thoroughly organised and almost unchangeable system of laws and customs.
           条理清晰、几乎不容更改的法律和关税体系