The antonyms for the word "cooperates with" would be "opposes," "defies," "resists," "disobeys," or "disagrees with." These words indicate a lack of willingness to work together or collaborate towards a common goal. Oppose would suggest actively fighting against or obstructing progress, while defy implies open rebellion or refusal to comply. Resist often indicates a passive resistance to change or instructions. Disagree with shows a difference of opinion or perspective that prevents cooperation. Knowing these antonyms can help in communication and teamwork settings, where being able to recognize and address potential sources of conflict can prevent misunderstandings and improve outcomes.