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immutable

Upper-Intermediate (B2)

IPA: /ɪˈmjuːtəbl/

KK: /ɪˈmjuːtəbl/

adjective
Definition

Not able to be changed or altered.


Example

The laws of physics are considered immutable and do not change over time.


Conversation
Sloth A
I think some beliefs are almost immutable for people.
Sloth B
That's true; once someone believes something strongly, it's hard to change their mind.
Sloth A
Yeah, it makes discussions really challenging sometimes.
Sloth B
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
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