instrumental

adjective

in·​stru·​men·​tal ˌin(t)-strə-ˈmen-tᵊl How to pronounce instrumental (audio)
1
a
: serving as a crucial means, agent, or tool
was instrumental in organizing the strike
b
: of, relating to, or done with an instrument or tool
2
: relating to, composed for, or performed on a musical instrument
3
: of, relating to, or being a grammatical case or form expressing means or agency
4
: of or relating to instrumentalism
5
: operant sense 3
instrumental learning
instrumental conditioning
instrumental noun
instrumentally adverb

Did you know?

An instrument is a tool, something used to construct. It's often a tool for making music. A musical saw happens to be a carpenter's tool that can be played with a violin bow (though you probably wouldn't want to play a wrench or a pair of pliers). The musical meanings of instrumental, as in "It starts with an instrumental piece" or "a jazz instrumental", are common. But the meanings "helpful", "useful", and "essential", as in "He was instrumental in getting my book published", are just as common.

Examples of instrumental in a Sentence

They played instrumental music at the wedding. an instrumental version of a song
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.
Simon said de León was instrumental in teaching him the ins and outs of the byzantine world of Cuban politics. Charles Rabin, Miami Herald, 14 Apr. 2025 Such a devastating turn by the advocate who was instrumental in building Reigns' dominant empire, tearing it down to crown Punk, would fundamentally shake the power structure of WWE to its very core. David Faris, MSNBC Newsweek, 12 Apr. 2025 That said, Monday night’s deliveries likely fell well shy of what the Eye Network would have commanded if Duke hadn’t blown its shot at a 12th trip to the championship game; 10 years ago, the Blue Devils were instrumental in serving up 28.3 million viewers with a 68-63 victory over Wisconsin. Anthony Crupi, Sportico.com, 8 Apr. 2025 Related article Top vaccine official forced out of FDA And Dr. Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research, who was instrumental in the development and authorization of mRNA vaccines during the Covid-19 pandemic, was forced out of the agency this month. Jacqueline Howard, CNN Money, 8 Apr. 2025 See All Example Sentences for instrumental

Word History

First Known Use

1616, in the meaning defined at sense 1a

Time Traveler
The first known use of instrumental was in 1616

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Cite this Entry

“Instrumental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/instrumental. Accessed 22 Apr. 2025.

Kids Definition

instrumental

adjective
in·​stru·​men·​tal ˌin(t)-strə-ˈment-ᵊl How to pronounce instrumental (audio)
1
a
: acting as an instrument or means
was instrumental in organizing the club
b
: of, relating to, or done with an instrument
instrumental error
2
: relating to, composed for, or performed on a musical instrument
an unusual instrumental arrangement
instrumentally adverb

Medical Definition

instrumental

adjective
in·​stru·​men·​tal ˌin(t)-strə-ˈment-ᵊl How to pronounce instrumental (audio)
: operant
instrumental learning
instrumental conditioning

More from Merriam-Webster on instrumental

Last Updated: - Updated example sentences
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