Indefinite adjectives in Nepali grammar, also known as Anishchayabachak Visheshan, are used to refer to nonspecific persons, things, or quantities. They do not refer to a specific quantity or exact one of something, but only to an indefinite amount or number. This category includes words like ‘some’, ‘any’, ‘many’, ‘few’, ‘all’, etc. Expressions using indefinite adjectives allow for a degree of uncertainty, which can make the language richer and more flexible.