Definition

Something that cannot be imagined or is too difficult to comprehend.

Example

The scale of the universe is often described as unimaginable.

Conversation

Did you hear about the new roller coaster they built?

Yeah, I heard it's unimaginable how high it goes!

I can't believe people actually want to ride something that extreme.

Right? It sounds like an unimaginable thrill!

Synonyms & Antonyms

Root Explanation

Unimaginable → It is formed from "un-" (meaning not) and "imaginable" (from Latin "imaginabilis", meaning able to be imagined). The word "unimaginable" means not able to be imagined or conceived.

Memory Tip

Think of 'not' ('un-') being added to 'able to be imagined' ('imaginable') — this helps you remember that something unimaginable is something you cannot conceive.

Visually Confused Words