Upper-Intermediate (B2)
IPA: /ɪˈnɔltərəbli/
KK: /ɪˈnɔltərəbli/
Definition
In a way that cannot be changed or altered.
Example
The rules were inalterably set, leaving no room for negotiation.
Conversation

Have you noticed how some things change but others remain inalterably the same?

Yeah, it's interesting how certain traditions stick around.

Exactly! It feels comforting to know that some things won’t change, inalterably so.

For sure, it's like a constant in our ever-changing lives.
Synonyms & Antonyms
Synonyms
immutably
permanently
irrevocably
Antonyms
temporarily
flexibly
changeably
Root Explanation
Inalterably → It is formed from "in-" (meaning not) and "alterare" (meaning to change) and the suffix "-ably" (meaning in a manner). The word "inalterably" means in a manner that cannot be changed or altered.
Memory Tip
Think of 'not changing' ('in-') and 'to change' ('alterare') — that's why inalterably means something that cannot be changed.
Visually Confused Words
unalterably
alterably
unalterable
intolerably
unalterability
interally
inerrably
alterable