Definitions for "Disruptive"
Causing, or tending to cause, disruption; caused by disruption; breaking through; bursting; as, the disruptive discharge of an electrical battery.
characterized by unrest or disorder or insubordination; "effects of the struggle will be violent and disruptive"; "riotous times"; "these troubled areas"; "the tumultuous years of his administration"; "a turbulent and unruly childhood"
A project manager that tends to break apart the unity of a group, one that tends to be an agitator and cause s disorder on a project.