The term "adjective group" refers to a group of words that modify a noun or pronoun in a sentence. There are several synonyms for "adjective group" that can be used to describe this type of grammatical construction. For example, "adjectival phrase" is often used to refer to a group of words that function as an adjective in a sentence. Similarly, "modifier group" is another way to describe a collection of words that modify a noun or pronoun. Other possible synonyms for "adjective group" might include "descriptor group," "qualifying group," or simply "adjectives." Regardless of the specific term used, understanding the function and structure of adjective groups is an important aspect of effective writing and communication.