What is the meaning of Instrumental?

Essential or central; of great importance or relevance.

Serving as an instrument, medium, means, or agency.

Pertaining to, made by, or prepared for an instrument, especially a musical instrument (rather than the human voice).

Applied to a case expressing means or agency, generally indicated in English by by or with with the objective.

A composition written or performed without lyrics or singing, using a lead instrument to replace vocals.

pertaining to, made by, or prepared for an instrument, especially a musical instrument (rather than the human voice).
applied to a case expressing means or agency.

pertaining to, made by, or prepared for an instrument, especially a musical instrument (rather than the human voice).

applied to a case expressing means or agency.

Resembling an instrument in role; instrumental (serving as a means)

Resembling an instrument in use (i.e. being used as a tool)

Resembling a (specific kind of) instrument in appearance.

instrumental (acting as an instrument)

instrumental (having no singing)

instrumental (pertaining to the instrumental case)

instrumental (grammatical case)

instrumental (composition without singing)

a composition made for instruments only or a (version of some) song in which only the instruments are heard

Source: wiktionary.org

See also