Contentious (adjective)

  1. Causing or likely to cause an argument; controversial.
  2. Involving heated argument.
  3. Tending to argue or strife.
  4. Having a tendency to disagree or argue.

Origin:

From latin contentiosus ('quarrelsome').

Examples:

  1. The issue of immigration is a contentious topic in politics.
  2. The new policy was a contentious issue among the employees.
  3. The decision was contentious and led to protests and demonstrations.
Some random words: prairie, deforestation, contravene