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If something is immutable, it never changes, or it cannot be changed. An immutable fact stays true; people also speak of immutable laws — rules nothing can . It is a fairly formal adjective; the everyday way is 'unchangeable' or 'that never changes'. Though actually, we often put it on things that are only very hard to change, not truly impossible: an immutable habit, for example. In computer science, an immutable object is one the program must not alter once it is made. That is a specialist use, but you will see it a lot if you read about coding.
不可改變的、不變的(程式裡說「不可變」)
組成From Latin immutabilis, 'unchangeable': im- ('not') + mutable ('able to change'). Mutable is from Latin mutare, 'to change'.
同家族的字
- mutablewithout the 'not': able to change
- immutabilitythe noun: the quality of not changing
- mutatesame Latin root for 'change'
- mutationa change, especially in genes
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
immutableadj
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Unable to be changed without exception.
- The government has enacted an immutable law.
- Mutable as is our nature, it delights in the immutable: and we expect as much constancy as if all time, to say nothing of our own changeableness, had not shewn that ever "the fashion of this world passeth away."
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computingengineeringmathematicsNot able to be altered in the memory after its value is set initially.
- Constants are immutable.
immutablenoun
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Something that cannot be changed.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。