Definition

Something that is difficult to understand or explain, often causing curiosity or wonder.

Example

The old house had a mysterious atmosphere that made everyone feel uneasy.

Comparatives & Superlatives

Conversation

Have you seen that mysterious old house down the street?

Yeah, it always gives me the creeps when I walk by it.

I heard some stories about it being haunted and that's why it's so mysterious.

That makes sense! I’m curious but also a bit scared to explore it.

Synonyms & Antonyms

Root Explanation

Mysterious → It is formed from "mysterium" (from Greek "musterion", meaning a secret or hidden thing) and the suffix "-ous" (meaning full of). The word "mysterious" describes something that is full of secrets or difficult to understand.

Memory Tip

Think of something that is 'full of secrets' — 'musterion' means a secret, and '-ous' means full of.

Visually Confused Words