instrumental

adjective

in·​stru·​men·​tal ˌin(t)-strə-ˈmen-tᵊl How to pronounce instrumental (audio)
Synonyms of instrumentalnext
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.
Cloobeck was instrumental in getting the Las Vegas airport renamed after Reid in 2021. Hannah Fry, Los Angeles Times, 13 May 2026 But where Portner seemed adrift in busy harmonies on that EP, Croz Boyce is a comparatively unhurried, almost entirely instrumental project. Ethan Beck, Pitchfork, 12 May 2026 Entertainment will feature the Louis Pettinelli Jazz Group, a four-piece instrumental band. Post-Tribune, Chicago Tribune, 11 May 2026 Barbra Banda has been instrumental for the Pride again this season and has scored a league-leading eight goals in eight matches. Kyle Foley, The Orlando Sentinel, 11 May 2026 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 19 May. 2026.

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

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