Definition

Something that cannot be seen or noticed.

Example

The unobservable particles in the experiment were difficult to study.

Conversation

Have you ever thought about things that are unobservable?

Yeah, like dark matter in space — we can’t see it at all!

Exactly! It’s fascinating how much we still don’t know.

I know, right? Some mysteries are just better left unobservable.

Synonyms & Antonyms

Root Explanation

Unobservable → It is formed from "un-" (meaning not) and "observable" (from Latin "observare", meaning to watch or observe). The word "unobservable" means not able to be observed or watched.

Memory Tip

Think of 'not' ('un-') being added to 'watch' ('observare') — that's why unobservable means something that cannot be seen or watched.

Visually Confused Words