mastermind

1 of 2

noun

mas·​ter·​mind ˈma-stər-ˌmīnd 

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

Synonyms of mastermind

Noun

• architect
• engineer

Verb

• engineer
• negotiate
• plot
• manipulate
• arrange
• maneuver

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

Noun

Berlinger maintained Manson's reputation as an evil mastermind was fueled more by myth than reality. — Stephanie Nolasco, FOXNews.com, 5 Sep. 2026

Prosecutors alleged that Donna was one of the masterminds behind Markel’s murder, helping to fund the contract killing, which was estimated to cost even more than $100,000, according to court documents obtained by CNN. — Jordana Comiter, PEOPLE, 4 Sep. 2026

Verb

For decades, the prevailing story of the Manson murders held that Charles Manson masterminded a murderous plot to ignite a race war inspired by the Beatles. — Stephanie Nolasco, FOXNews.com, 5 Sep. 2026

However, off the field, the leadership style of the man tasked with masterminding a new era at Anfield is understated. — James Pearce, New York Times, 23 Aug. 2026

Word History

First Known Use

Noun

1872, in the meaning defined above

Verb

1927, in the meaning defined above

Rhymes for mastermind

• countersigned
• disinclined
• humankind
• interlined
• intertwined
• misaligned
• nonaligned
• predefined
• realigned
• reassigned
• recombined
• redefined

Kids Definition

mastermind

noun

mas·​ter·​mind

ˈmas-tər-ˌmīnd, 

ˌmas-tər-ˈmīnd

: a person who invents or directs a project

mastermind verb