Definition

In a way that cannot be changed or modified.

Example

The rules were unalterably set, leaving no room for negotiation.

Conversation

I believe our plans for the weekend are unalterably set now, right?

Absolutely! I can't wait to hit the beach with you all.

It's nice to have things decided unalterably so we can relax.

Totally! Now we just need to check the weather.

Synonyms & Antonyms

Root Explanation

Unalterably → It is formed from "un-" (meaning not) and "alterare" (meaning to change) and the suffix "-ably" (meaning in a manner that can be). The word "unalterably" means in a manner that cannot be changed or altered.

Memory Tip

Think of 'not changing' ('un-') something that is 'altered' ('alterare') — that's why unalterably means something that cannot be changed.

Visually Confused Words