trouble-rouser
A person who intentionally stirs up conflict, dissent, or emotional reactions within a group. It functions as an intuitive, informal variation of "rabble-rouser," shifting the focus from inciting a massive mob to creating targeted discord and agitation.
The meeting was going smoothly until that known trouble-rouser started questioning the management's motives."
trouble-rouser by LadyinRedX October 1, 2026