Meaning of “adjective” - Learner’s Dictionary

adjective

noun [ C ] uk us /ˈædʒɪktɪv/

A2 a word that describes a noun or pronoun. The words 'big', 'boring', 'purple', and 'obvious' are all adjectives.

adjectival uk us /ˌædʒɪkˈtaɪvəl/ adjective

containing or used like an adjective:

an adjectival phrase

(Definition of “adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)