brainteaser

[breyn-tee-zer]

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noun

a puzzle or problem whose solution requires great ingenuity.

Origin of brainteaser

First recorded in 1920–25; brain + tease + -er¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for brainteaser

riddle, conundrum, subtlety, question, enigma, secrecy, problem, thriller, puzzlement, mystery, mystification, perplexity, stickler, cliffhanger, twister, occult, cryptogram, crux, difficulty, poser