mastermind

M3A1S1T1E1R1M3I1N1D2
UK/ˈmɑː.stə.mʌɪnd/US/ˈmæs.tɚˌmaɪnd/

noun

A person with an extraordinary intellect or skill that is markedly superior to their peers.

Less commonScrabble 15

Meanings

nounmastermind (plural masterminds)

plural masterminds

  1. A person with an extraordinary intellect or skill that is markedly superior to their peers.

    At long intervals some master-minds appeared, looking upon each advance in practical science as a retro-gradation in the true utility.

    1840, Edgar Allan Poe, The Colloquy of Monos and Una
    1 more example

    His first outside hire wasn't an electronics whiz or a mechanical mastermind, but a young industrial designer, a creature hitherto unknown at DEKA.

    2003, Steve Kemper, chapter 2, in Code Name Ginger: the Story Behind Segway and Dean Kamen's Quest to Invent a New World, →ISBN, page 34
  2. idiomaticA person responsible for the highest level of planning and execution of a major operation.

    The first was with none other than Khalid Sheikh Mohammad (KSM), mastermind of the 9/11 attacks.

    2007, Mark S. Hamm, chapter 6, in Terrorism as Crime: from Oklahoma City to Al-Qaeda and Beyond, →ISBN, page 196
    1 more example

    Prosecutors later suspected that Wang, chairman of Ciji Temple in Tainan's Syuejia District, was the mastermind behind the shootings, but the court acquitted him of the charge because of insufficient evidence.

    2025 March 14, Hsieh Hsin-en, Ko Lin, “Supreme Court upholds verdicts in 2022 Tainan shooting case”, in Focus Taiwan, archived from the original on 14 Mar 2025, Society
verbmastermind (third-person singular simple present masterminds, present participle masterminding, simple past and past participle masterminded)

present singular third person masterminds · participle present masterminding · participle past masterminded · past masterminded

  1. transitiveTo plan or execute (a project) in the role of mastermind.

    It would later be revealed that the corporation contributed over a quarter of a million dollars to the effort—a whopping 93 percent of the total coffer—and hired a team of media and political experts to mastermind it.

    2007, Kevin Danaher et al., Building the Green Economy: Success Stories from the Grassroots, →ISBN, page 136
    2 more examples

    Travelling over the route today, it is well to remember the ongoing role of the Friends of the S&C and the work of the late Ron Cotton. He masterminded its revival, thereby reversing the role he had been given by BR to bring about its closure.

    2020 July 1, David Allen, “Signalling from Leeds along the S&C”, in Rail, page 78

    Gray was soon replaced by Morgan McSweeney, who had masterminded Labour’s unexpectedly rapid post-Jeremy Corbyn renaissance, but was equally unsuited to the role, and whose primary legacy was the disastrous appointment of Peter Mandelson as ambassador to Washington.

    2026 June 22, Peter Walker, “Frozen by the challenges of power: how Starmer turned triumph into tragedy”, in The Guardian, →ISSN

Synonyms & antonyms

nounsomeone who creates new things

Broader

nounsomeone who has exceptional intellectual ability and originality

verbplan and direct (a complex undertaking)

Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Translations

Bulgarian ръководител, организатор
  • ръководител (răkovoditel)a person responsible for a major operation
  • организатор (organizator)a person responsible for a major operation
  • ръководя (răkovodja)to act as mastermind
  • организирам (organiziram)to act as mastermind
Catalan cervell, ment pensant
  • cervella person responsible for a major operation
  • ment pensanta person responsible for a major operation
Czech mozek, mozek
  • mozeka person with extraordinary intellect
  • mozeka person responsible for a major operation
Finnish johtaja, johtaa
  • johtajaa person responsible for a major operation
  • johtaato act as mastermind
French cerveau, tête
  • cerveaua person with extraordinary intellect
  • têtea person with extraordinary intellect
  • cerveaua person responsible for a major operation
  • organiserto act as mastermind
  • dirigerto act as mastermind
German Superhirn, Drahtzieher
  • Superhirna person with extraordinary intellect
  • Drahtziehera person responsible for a major operation
  • Masterminda person responsible for a major operation
Greek ιθύνων νους
  • ιθύνων νους (ithýnon nous)a person responsible for a major operation
Indonesian dalang, mendalangi
  • dalanga person responsible for a major operation
  • mendalangito act as mastermind
Italian orchestrare, architettare
  • orchestrareto act as mastermind
  • architettareto act as mastermind
Japanese 首謀者
  • 首謀者 (Shubō-sha)a person responsible for a major operation
Russian руководи́тель, руководи́ть
  • руководи́тель (rukovodítelʹ)a person responsible for a major operation
  • руководи́ть (rukovodítʹ)to act as mastermind
  • управля́ть (upravljátʹ)to act as mastermind
Slovak mozok, mozok
  • mozoka person with extraordinary intellect
  • mozoka person responsible for a major operation
Spanish mente maestra, cerebro
  • mente maestraa person with extraordinary intellect
  • cerebroa person responsible for a major operation
  • mente maestraa person responsible for a major operation
Turkish beyin
  • beyina person responsible for a major operation
Ukrainian мозок, голова
  • мозок (mozok)a person with extraordinary intellect
  • голова (holova)a person with extraordinary intellect
  • керівник (kerivnyk)a person responsible for a major operation

Rhymes & wordplay

Anagrams

Cite this entry
APA

mastermind. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/mastermind

MLA

“mastermind.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mastermind. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “mastermind,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/mastermind.

Source: mastermind on Wiktionary, CC BY-SA 4.0.