One of the main functions of adjective phrases is that they go with nouns and change or add to their meaning.
Hair: black hair, brown hair, straight blonde hair, long red hair.
Adjective phrases before a noun are called attributive phrases.
adjective phrase  | noun  | |
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Adjective phrases before a noun occur after determiners.
determiner  | adjective phrase  | noun  | |
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If the head of the noun phrase is one of the following pronouns, the adjective phrase occurs after the pronoun:
anyone  | everyone  | no one  | someone  | 
anybody  | everybody  | nobody  | somebody  | 
anything  | everything  | nothing  | something  | 
anywhere  | everywhere  | nowhere  | somewhere  | 
noun phrase  | |||
head  | adjective phrase  | ||
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If an attributive adjective needs a word or phrase to complete its meaning (a complement), either the whole adjective phrase or just its complement must follow the head noun.
  | adjective (in bold) with no complement  | 
  | adjective (in bold) and complement (underlined) both after the noun head (dress)  | 
  | adjective (in bold) before the noun head (apartment); complement (underlined) after the noun head  | 
For a number of adjectives, the whole adjective phrase must follow the noun when a complement of the adjective is used. These include closed, eager, full, happy, keen, open, ready, responsible, (un)willing, worth.
noun phrase  | adjective phrase + complement  | ||
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