What is an antonym for choir?

There isn't a perfect antonym for "choir" in the sense of a group of singers. However, depending on the context, some possible words could be:

Focusing on the group aspect:

* Soloist: This is the opposite of a group, emphasizing a single performer.

* Ensemble: While often used for musicians, it can be contrasted with choir to emphasize a broader range of instruments or performers.

* Individual: This simply emphasizes that there's no group involved.

Focusing on the sound:

* Silence: This is the complete opposite of singing, which is the choir's primary function.

* Noise: This could be used to contrast the organized and harmonious sound of a choir with something chaotic or unmusical.

* Discord: This emphasizes the lack of harmony that a choir strives for.

The best antonym will depend on the specific context and the intended meaning.