adjective

n. part of speech used to modify a noun (Grammar)

In grammar, an adjective is a word whose main syntactic role is to modify a noun or pronoun (called the adjective's subject), giving more information about what the noun or pronoun refers to. Collectively, adjectives form one of the traditional eight parts of speech, though linguists today distinguish adjectives from words such as determiners that used to be considered adjectives but that are now recognized to be different.
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Noun
1. a word that expresses an attribute of something
(hypernym) modifier, qualifier
(hyponym) descriptive adjective, qualifying adjective
2. the word class that qualifies nouns
(hypernym) major form class
Adjective
1. of or relating to or functioning as an adjective; "adjectival syntax"; "an adjective clause"
(synonym) adjectival
2. applying to methods of enforcement and rules of procedure; "adjective law"
(synonym) procedural
(antonym) substantive, essential
(classification) law, jurisprudence

adj. adjectival, adjective

v. make adjectival