controversial
1. [ adjective ] marked by or capable of arousing controversy
Examples:

"the issue of the death penalty is highly controversial" "Rushdie's controversial book" "a controversial decision on affirmative action"

Related terms: uncontroversial polemic contentious disputed arguable
Similar spelling:   controversially
  controversialist
  controversy
  controvert
  control_tower
  controller
  counteroffer
  control_grid
  control_stick
  countersink
  countersign
  contravene
  controllership
  control_rod
  control_key
  control_center
  contretemps
  connatural