1. adjective /ædʒɛkˈtaɪvəl,ædʒəkˈtaɪvəl/
a) Of or relating to or functioning as an adjective; "adjectival syntax"; "an adjective clause" .
b) Of or relating to procedure, especially to technicalities thereof.
2. noun /ædʒɛkˈtaɪvəl,ædʒəkˈtaɪvəl/
An adjectival phrase or clause.
Wikipedia foundation.