What is an indefinite pronoun?

Indefinite pronouns are pronouns such as “anything” or “nobody” that refer to people or things in a general way, without specifying exactly whom or what is being referenced.

The main indefinite pronouns are formed by combining any-, every-, no-, or some- with -body, -one, or -thing. Those formed with -where (e.g., “somewhere”) are classed as indefinite adverbs instead.

Other indefinite pronouns are not formed in this way and often also function as determiners. Some examples are “either,” “many,” “both,” and “little.”