Definition

A challenging question or problem that is hard to solve or answer.

Example

The riddle was a real stumper for everyone in the room.

Conversation

I was working on that puzzle you gave me, and it turned into a real stumper.

Really? I thought it was challenging but not too hard.

Well, I guess I underestimated it; I couldn't figure out the last piece.

Sometimes those stumper puzzles can really test your patience!

Synonyms & Antonyms

Root Explanation

Stumper originates from the verb 'stump' (from Old English 'stumpa', meaning to cause to be at a loss or to confuse) combined with the suffix '-er' (meaning a person who). A stumper is thus a person or thing that causes confusion or difficulty, particularly in a puzzling situation.

Memory Tip

Think of someone who 'confuses' ('stump') others, making them feel lost or puzzled — that's what a stumper does.

Visually Confused Words