Most people know what an adjective is, but when it comes to describing an adjective phrase, it's easy to get confused. An adjective phrase, or an adjectival phrase, is more than a group of words with an adjective in it. It's actually a group of words that describe a noun or pronoun in a sentence, thus functioning as an adjective.
The good news is, you don't have to be a grammar buff to understand what an adjective phrase is or how it works. In fact, we use these phrases all the time without even thinking. Let's take a closer look.