IPA: //ˈfækʃəs//
KK: /ˈfækʃəs/
In a way that causes disagreement or conflict within a group.
The committee met factiously, leading to heated debates and no clear decisions.
Factiously → It is formed from "factious" (from Latin "factiosus", meaning inclined to faction or party) and the suffix "-ly" (meaning in a manner of). The word "factiously" means in a manner that is inclined to create factions or divisions.
Think of being 'inclined to create divisions' — 'factious' refers to factions, and '-ly' indicates the manner of doing something.