Definition

Something that is so surprising or extraordinary that it is hard to believe or accept as true.

Example

The magician's trick was so unbelievable that the audience gasped in amazement.

Conversation

Did you see that game last night?

Yes, it was absolutely unbelievable how they came back in the last minute!

I know, right? I couldn't believe my eyes!

Same here! That kind of excitement is what sports are all about.

Synonyms & Antonyms

Root Explanation

Unbelievable → It is formed from "un-" (meaning not) and "believe" (from Old English "beliefan", meaning to have faith or confidence in something) and "-able" (meaning capable of). The word "unbelievable" means not capable of being believed or too extraordinary to be accepted as true.

Memory Tip

Think of 'not' ('un-') being able to 'have faith' ('believe') in something that is 'capable' ('-able') of being extraordinary — that's why we call it unbelievable.

Visually Confused Words