unchangeable

1 of 2

adjective

un·​change·​able ˌən-ˈchān-jə-bəl 

: not changing or to be changed : immutable

an unchangeable deadline

The past is unchangeable.

unchangeability

ˌən-ˌchān-jə-ˈbi-lə-tē 

noun

unchangeableness

ˌən-ˈchān-jə-bəl-nəs 

noun

unchangeably

ˌən-ˈchān-jə-blē 

adverb

unchangeability

2 of 2

noun

un·​changeability "+ 

: the quality or state of being unchangeable

Synonyms of unchangeable

Adjective

• unchanging
• fixed
• unalterable
• immutable
• invariable
• determinate

Examples of unchangeable in a Sentence

Adjective

I'm afraid that my opinion on this matter is unchangeable.

Recent Examples on the Web

Adjective

Families can also create irrevocable trusts to remove countable assets towards Medicaid qualification, but remember, irrevocable trusts are usually unchangeable. — Medora Lee, USA Today, 9 May 2026

Policies Vary by Location As generous as Aldi’s approach can be, there are a few places where the rules are solid and unchangeable. — Jessica Safavimehr, Southern Living, 22 Apr. 2026

Most of these items can be purchased separately for a reasonable price, so focus more on the unchangeable aspects of the cage when choosing, such as size and accessibility. — Bestreviews, Chicago Tribune, 20 Apr. 2026

Coachability used to be considered a mostly unchangeable personality trait; these days, it’s seen as a set of skills that can be developed. — Alex Hutchinson, Outside, 22 Mar. 2026

Word History

Etymology

Noun

Middle English unchangeabilite, from unchangeable, unchangeabil unchangeable + -ite -ity

First Known Use

Adjective

14th century, in the meaning defined above

Rhymes for unchangeable

• changeable
• exchangeable
• interchangeable

Kids Definition

unchangeable

adjective

un·​change·​able ˌən-ˈchān-jə-bəl 

: not changing or to be changed : immutable

unchangeable facts

unchangeableness noun

unchangeably

-blē 

adverb