What is the correct adjective form of boy?

Answer 1

The adjective form of the noun boy is boyish.

In most cases, the noun 'boy' is used to describe a noun (a boy band, the boy puppy). This use of a noun to describe another noun is called an attributive noun or a noun adjunct.

Answer 2

The adjectival form of the noun boy is boyish.

Answer 3

The singular noun is boy (one boy).

The plural noun is boys (two or more boys).

Answer 4

Singular is boy. The plural is boys.