There are different kinds of adjectives.
Some adjectives describe the qualities of nouns.
a beautiful rainbow
a clever monkey
a difficult question
a kind lady
Some adjectives tell you which place or country a person or thing comes from, or belongs to. They are called adjectives of origin.
a Balinese dancer
the English language
the French flag
an Italian car
Some adjectives tell you the color of things.
The sea is blue.
George is wearing brown shoes.
I don’t like green apples.
Carrots are orange.
Some adjectives tell you the size of the nouns they describe.
a big hat
a high mountain
a large ship
a long bridge
Numbers are adjectives, too. They tell you how many people, animals, or things there are. Sometimes they are called adjectives of quantity.
eleven hens fifteen frogs nineteen lizards
twelve geese sixteen snails twenty butterflies
Other adjectives tell you something about quantity without giving you the exact number.
a little ice cream
a little rice
not many people
too much salt
Kaynak: Basic English Grammer Book1