mastermind

1 of 2

noun

mas·​ter·​mind ˈma-stər-ˌmīnd How to pronounce mastermind (audio)
ˌmas-tər-ˈ
: a person who supplies the directing or creative intelligence for a project

mastermind

2 of 2

verb

masterminded; masterminding; masterminds

transitive verb

: to be the mastermind of

Examples of mastermind in a Sentence

Noun the mastermind behind the terrorist plot the real mastermind behind the embezzlement scheme Verb They masterminded a unique solution to the problem. He masterminded the bank robbery.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Gunn’s comic book adventure stars David Corenswet as Superman, Rachel Brosnahan as Lois Lane and Nicholas Hoult as criminal mastermind Lex Luthor. Etan Vlessing, HollywoodReporter, 16 Sep. 2025 Unlike high-cost advisors or one-size-fits-all masterminds, these tools offer flexibility to adapt as income changes and knowledge grows. Alejandra Rojas, Forbes.com, 16 Sep. 2025
Verb
Against a Chargers defense that was masterminded by head coach Jim Harbaugh and defensive coordinator Jesse Minter, the Raiders had lots of trouble getting anything going consistently. Robert Marvi, MSNBC Newsweek, 16 Sep. 2025 Polk, a longtime business partner of Jordan who was vice chairman of Hornets Sports & Entertainment when Jordan was the NBA team’s majority owner, is depicted as masterminding efforts to undermine NASCAR. Michael McCann, Sportico.com, 16 Sep. 2025 See All Example Sentences for mastermind

Word History

First Known Use

Noun

1872, in the meaning defined above

Verb

1927, in the meaning defined above

Time Traveler
The first known use of mastermind was in 1872

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Cite this Entry

“Mastermind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mastermind. Accessed 19 Sep. 2025.

Kids Definition

mastermind

noun
mas·​ter·​mind
ˈmas-tər-ˌmīnd,
ˌmas-tər-ˈmīnd
: a person who invents or directs a project
mastermind verb

More from Merriam-Webster on mastermind

Last Updated: - Updated example sentences
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