mastermind

1 of 2

noun

mas·​ter·​mind ˈma-stər-ˌmīnd How to pronounce mastermind (audio)
ˌmas-tər-ˈ
Synonyms of mastermindnext
: 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
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Noun
So, what do the masterminds at Love Island have in mind? Alejandra Gularte, Vulture, 3 June 2026 The inflatable work includes a sound element created by Thomas Bangalter, one of the two masterminds of the French electronic-music duo Daft Punk, and had been scheduled to be on view from June 6 through June 28. Andy Battaglia, ARTnews.com, 3 June 2026
Verb
At least six people carried out the plot alllegedly masterminded by the 27-year-old Molina, but none of them have been apprehended, authorities said. CBS News, 3 June 2026 At the time Chhabria made his finding in 2024, Ervin had been awaiting execution in the November 1986 killing of Carlene McDonald, who was slain in an alleged murder-for-hire plot believed by prosecutors to be masterminded by the woman’s ex-husband. Jakob Rodgers, Mercury News, 3 June 2026 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 15 Jun. 2026.

Kids Definition

mastermind

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

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