Definition of brainteaser
: something (such as a puzzle) that demands mental effort and acuity for its solution
Recent Examples of brainteaser from the Web
Something this simple is more like a recipe for chicken soup than a circumvention device, says Keith Winstein, who solved this brainteaser with Marc Horowitz back in December.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brainteaser'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of brainteaser
BRAINTEASER Defined for English Language Learners
Definition of brainteaser for English Language Learners
: a puzzle that is difficult to figure out or solve
Learn More about brainteaser
Seen and Heard
What made you want to look up brainteaser? Please tell us where you read or heard it (including the quote, if possible).