IPA: //ədˈdʒɛktɪvli//
KK: /ædʒˈɛktɪvli/
In a way that relates to or describes a noun, similar to how an adjective functions.
She described the painting adjectively, focusing on its colors and shapes.
Adjectively → It is formed from "adjective" (from Latin "adjectivus", meaning thrown to or added) and "-ly" (a suffix meaning in the manner of). The word "adjectively" means in the manner of an adjective, describing how something is characterized by an adjective.
Think of the word 'adjective' which means something that is 'added' to describe a noun, and remember that 'adjectively' refers to doing so in the manner of an adjective.