What is difference between possesive determiner and adjective

Answer 1

A possessive determiner is kind of like an adjective, but special. An adjective's job is to describe something, whether we're talking about its quality, size, color, shape, etc. etc. etc. If we add whose object it is, isn't that also an adjective? Well, kind of. Knowing who owns an object does nothing to describe it other than provide ownership.

Let's examine a couple of sentences to give some context:

She played with the small, green ball.

She played with her ball.

In the first sentence, even though we don't know it's her ball, we do know its size and color, so we can almost picture it. Omitting these adjectives in the second sentence and including the possessive determiner tells us nothing about what the ball is like. It could be a baseball, basketball, volleyball (and so on).

Here's the TL;DR:

An adjective can help you picture a noun. A possessive determiner shows ownership only, and provides no descriptive qualities.

Hope this helps!