Upper-Intermediate (B2)
IPA: /ɪˈmjuːtəbl/
KK: /ɪˈmjuːtəbl/
Definition
Not able to be changed or altered.
Example
The laws of physics are considered immutable and do not change over time.
Conversation

I think some beliefs are almost immutable for people.

That's true; once someone believes something strongly, it's hard to change their mind.

Yeah, it makes discussions really challenging sometimes.

Definitely! It’s like trying to move a mountain.
Synonyms & Antonyms
Synonyms
unchanging
fixed
invariable
Antonyms
changeable
variable
mutable
Root Explanation
Immutable → It is formed from "in-" (meaning not) and "mutabilis" (from Latin, meaning changeable). The word "immutable" means not able to be changed or unchangeable.
Memory Tip
Think of 'not' ('in-') being able to 'change' ('mutabilis') — that's why immutable means something that cannot change.
Visually Confused Words
imputable
mutable
incommutable
impermutable
immortable
commutable
immarble
imitable