IPA: /kəmˈbætɪvli/
KK: /kəmˈbætɪvli/
In a manner that shows a willingness to fight or argue.
She spoke combatively during the debate, challenging every point made by her opponent.
Combatively → It is formed from "combat" (from Latin "combattere", meaning to fight) and "-ively" (a suffix forming adverbs indicating a manner). The word "combatively" means in a manner that is inclined to fight or argue.
Think of 'combat' as fighting, and the '-ively' shows how something is done. So, combatively means doing something in a fighting manner.