Definition

Something that cannot be changed or modified.

Example

The rules of the game are unalterable, so everyone must follow them.

Conversation

I heard the weather forecast says the temperature will be unalterable this week.

Wow, that sounds pretty intense!

Yeah, it seems like we're stuck with this cold for a while.

I guess we just have to bundle up and deal with it.

Synonyms & Antonyms

Root Explanation

Unalterable → It is formed from "un-" (meaning not) and "alterare" (meaning to change). The word describes something that cannot be changed or modified.

Memory Tip

Think of 'not' ('un-') being able to 'change' ('alterare') something — that's why unalterable means it cannot be changed.

Visually Confused Words