Until now we have always sai that the declension is determined by the gender and the number. In the chapter declension in German we have seen that there are 9 types of declensions. With the declension of adjectives we have (luckily) not 9 different types but only four.

a) declension without any article
b) declension with a definite article
c) declension with a indefinite article
d) declension with a possessive pronoun or kein, keiner etc.

The declension of the adjectives varies according to the situation a), b), c) or d). The function of the adjectives stays the same and the declension is still depending on the gender and number of the noun that is described independent whether there is an article or not.

The few exceptions shall be left aside for the moment. First we have a look at the declension and we'll summarize everything at the end.