Is he a indefinite noun

No, the Word 'he' is not a noun.

The Word 'he' is a pronoun, a personal pronoun.

A personal pronoun is a Word that takes the place of a noun for a specific person or thing.

They are: I, you, we, he, she, it, me, us, him, her, they, them.

An indefinite pronoun is a Word that takes the place of a noun for a person, a thing, or amount that is unknown or unnamed.

They are: all, another, any, anybody, anyone, anything, both, each, either, enough, everybody, everyone, everything, few, fewer, less, little, many, more, most, much, neither, nobody, no one, nothing, none, one, other, others, several, some, somebody, someone, something, such, and they (used for people in general).

Example uses:

• When George got to 19th Street, he got off the train. (personal pronoun)
• You may have some. We have more in the kitchen. (indefinite pronouns)