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.
The 19th Hole The USGA has been instrumental in growing adaptive golf. Candace Oehler, Forbes.com, 21 July 2025 Cameras also would have been instrumental in helping police figure out what happened to George Musser in 2022, Mueller said. Mary Divine, Twin Cities, 19 July 2025 As chief economist, Kleinhenz was instrumental in providing insights into retail industry growth, consumer spending patterns and broader economic factors, helping forecast and guide companies through economic challenges and opportunities. David Moin, Footwear News, 16 July 2025 Versace was instrumental in marrying fashion and celebrity, a practice typical by today’s standards but groundbreaking amongst his peers at the time. Zoe Whitfield, CNN Money, 15 July 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

Browse Nearby Words

Cite this Entry

“Instrumental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/instrumental. Accessed 29 Jul. 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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