What context can I use each word in?
Learn when and how to use these words with these examples!
unmodifiable
Example
The file is unmodifiable once it has been saved. [unmodifiable: adjective]
Example
The code contains an unmodifiable constant value. [unmodifiable: adjective]
immutable
Example
The laws of physics are immutable and unchanging. [immutable: adjective]
Example
The data structure is designed to be immutable for security reasons. [immutable: adjective]
Good things to know
Which word is more common?
Immutable is more commonly used than unmodifiable in everyday language. Immutable is versatile and covers a wide range of contexts, while unmodifiable is more specific to computer science and programming.
What’s the difference in the tone of formality between unmodifiable and immutable?
Both unmodifiable and immutable are formal words that are typically used in technical or academic contexts.
