Noun

1. A word or phrase, such as an adjective or noun, that modifies a noun and is part of the noun's noun phrase; contrasted with predicative.

   In "this big house," "big" is an attributive, while in "this house is big," it is a predicative.

   In "this tiger is a man-eater," "man" is an attributive noun.

Adjective

1. Of, or being an attributive (see above).

   In "this big house", "big" is attributive, while in "this house is big", it is predicative.

2. Having the nature of an attribute.