The term that best describes someone who is aggressively uncooperative is "combative." This term implies a confrontational and hostile attitude, where the individual actively resists cooperation or assistance. A combative person may respond defiantly to requests or challenges, often displaying anger or aggression, which makes it clear that they are unwilling to work with others.
In contrast, terms like "receptive," "passive," and "cooperative" describe behaviors that indicate a willingness to engage or comply with others. Receptive suggests openness to ideas or help, passive indicates a tendency to accept without resistance, and cooperative reflects a willingness to work together harmoniously. These terms do not align with the aggressive non-compliance that "combative" encompasses.