boggler

American  

[bog-ler] / ˈbɒg lər /

noun

1. something, as an amazing fact, puzzle, or riddle, that astounds or defeats.

   The puzzle was a real boggler.

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Etymology

Origin of boggler

First recorded in 1600–10; boggle + -er ¹

Example Sentences

But after I left the company, I spent the last couple of years thinking about what’s worth making, because once you can make anything, it’s a real mind boggler to figure out what you actually want to make.

From New York Times

The real mind boggler is, how had she been getting away with it for so long?

From Salon

The real boggler was the statement that "there is no reason why Her Royal Highness should not become Queen."

From Time Magazine Archive

Along with diet books, cat books and advisories on how to make a profit from the coming apocalypse, there is a growing shelf concerned solely with mastering that infuriating, six-sided, six-colored, 27-part boggler with 42.3 quintillion possible combinations known as Rubik's Cube.

From Time Magazine Archive

Unless the introducer is a boggler, the Introduction will probably do good to those who want it and can be neglected by those who don’t; while in the rarer and better cases it will itself acquire, or even possess from the first, that very value as a point de repère which Mr Arnold had discussed.

From Project Gutenberg