ADJECTIVAL
adjectival, adjective
(adjective) of or relating to or functioning as an adjective; “adjectival syntax”; “an adjective clause”
Source: WordNet® 3.1
Etymology
Adjective
adjectival (comparative more adjectival, superlative most adjectival)
(grammar) Of or relating to or functioning as an adjective.
Synonym: adjective
(legal) Of or relating to procedure, especially to technicalities thereof.
Noun
adjectival (plural adjectivals)
An adjectival phrase or clause.
Source: Wiktionary
Ad`jec*ti"val, a.
Definition: Of or relating to the relating to the adjective; of the nature
of an adjective; adjective. W. Taylor (1797)
Source: Webster’s Unabridged Dictionary 1913 Edition