They give an idea about the characteristics of the noun by answering the question 'what kind':
Give Example Of Adjective. Adjectives are the words that manifest attributes of a noun or pronoun. Adjectives are coordinating if there are more than one, and they both modify the same noun.
Nominalisation In English Grammar High Level Writing Tips from www.grammarwiz.com
My sister is fond of animals. Other examples are big, crazy, any color, wet, hot, round examples of an adjective modifier is a word that gives more detail about the adjective. Adjectives add information on something we are discussing thus making sentences more descriptive.
Adjective provides further information about a noun, indicating things like color, size, condition, sound, appearance and etc.
Adjectives give us more information about a noun. This guide will help you understand their function so you can for example, you might find a list of adjectives that places shape before age. Old, green, and cheerful are examples of adjectives. Adjectives are words that describe nouns (or pronouns).
