adjectival phrase - grammar
https://www.grammar.com/adjectival-phraseFirst, a phrase is any multiword group without a conjugated verb. Second, an adjectival phrase is a phrase that modifies or describes a noun or pronoun. Usually, an adjectival phrase consists of an adjective and a prepositional phrase, such as free from bias or pertinent to our discussion.
Adjective phrase - English Grammar
https://www.englishgrammar.org/adjective-phrase27.08.2013 · A word group that has an adjective as its head is called an adjective phrase. Note that the adjective in this phrase may be accompanied by other words such as determiners, modifiers etc. Adjective phrases can go before a noun (attributive position). They can also go after a linking verb like be (predicative position).