ADJECTIVES

Adjectives are words that describe or modify a person or thing in the sentence.
e.g. the tall professor
a six-year-old child
the richest man

It would take a linguistic philosopher to explain why we say "little brown house" and not "brown little house" or why we say "red Italian sports car" and not "Italian red sports car." There is, however, a pattern. You will find many exceptions to the pattern in the table below, but it is definitely important to learn the pattern of adjective order if it is not part of what you naturally bring to the language.

The categories in the following table can be described as follows:
Determiners — articles and other limiters.
Observation — postdeterminers and limiter adjectives (e.g., a real hero, a perfect man) and adjectives subject to subjective measure (e.g., beautiful, interesting)
Size and Shape — adjectives subject to objective measure (e.g., wealthy, large, round)
Age — adjectives denoting age (e.g., young, old, new, ancient)
Color — adjectives denoting color (e.g., red, black, pale)
Origin — denominal adjectives denoting source of noun (e.g., French, American, Canadian)
Material — denominal adjectives denoting what something is made of (e.g., woolen, metallic, wooden)
Qualifier — final limiter, often regarded as part of the noun (e.g., rocking chair, hunting cabin, passenger car, book cover). Refer to the table below.











Source : http://grammar.ccc.commnet.edu/grammar/adjectives.htm