The antonyms for "shows willingness" include uncooperative, resistant, uninterested, stubborn, and unyielding. When someone is uncooperative, they are unwilling to work with others or be cooperative. Those who are resistant are not willing to comply with requests or suggestions, often out of defiance. Uninterested individuals lack the motivation or desire to participate or contribute, while a stubborn person is determined to have their way and is often unwilling to compromise. Finally, an unyielding individual is inflexible and rigid in their thinking and behavior, resistant to change or compromise. These antonyms paint a picture of individuals who are resistant, inflexible, and unwilling to cooperate or contribute.