ok this may sound dumb but i....?

We always used to say that it was a "describing word".

http://en.wikipedia.org/wiki/Adjective

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An adjective is a describing word

It tells us the size, colour, shape, amount etc of something

In the sentence 'The young girl lost her new doll', young and new are adjectives.

Hope that helps!

Please vote me as best answerer

funny, I also forget such things!........ I just googled it and here goes:

An adjective is a word that describes a noun, here are some examples: hot, cold, silly, dumb, smart, big, fat, thin, tiny, interesting, exciting, sweet, sour, bitchy, kind. You get the pic!

An adjective is a describing word, a word used to describe a noun.

e.g. tall, short, beautiful, ugly, warm, shiny

These are all words used to describe a noun

Judging by your extensive use of proper grammer in your question, I am very surprised that you would forget what an adjective is. Ironically you used one in your question that both answers the question and gives a fairly good description of yourself. hint...its descriptive of a noun

A word that describes noun. Examples pretty, funny, smart.

Describing word. Such as dumb. And forgetful. And purple.

I agree with Lexy S. Discriptions.

it is a word that describes another word. Like silly, fun, big, fluffy can all describe your pet poodle.

its a describing word :)

the following are adjectives:

cold, sticky, gleaming, shiny