instrumental
/ɪnstɹəˈmɛntəl/
noun
- 1
(grammar) The instrumental case.
- 2
A composition written or performed without lyrics, sometimes using a lead instrument to replace vocals.
adjective
- 1
Essential or central; of great importance or relevance.
“He was instrumental in conducting the business.”
- 2
Pertaining to, made by, or prepared for, an instrument, especially a musical instrument (rather than the human voice).
“An instrumental part”
- 3
(grammar) Applied to a case expressing means or agency, generally indicated in English by by or with with the objective.
“the instrumental case”
Antonyms
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