ADJECTIVE is a word modifies or describe a noun or a pronoun.
example: pretty, handsome, bad, good, big, small
PRONOUN is a word that take place of a noun.
example: she is pretty, he is handsome, we are good.
SUPERLATIVE is a highest degrees comparison of adjectives
example: she is prettiest among them,
he is the most handsome in our classroom.
--(^_^)---hope it can help.......