Which term describes a decision made unilaterally without collaboration?

The term that accurately describes a decision made unilaterally without collaboration is authoritarian decision. This approach involves one individual or a small group making choices without seeking input or agreement from others, emphasizing control and top-down management. Such decisions are typically characterized by a lack of consultation with others and can lead to outcomes that reflect the views or preferences of only the decision-maker(s), rather than a collective perspective. In many contexts, this decision-making style can result in fast execution of decisions, but may also risk negative reactions from those affected by the decisions if they feel excluded from the process.

In contrast, democratic decisions involve participation and input from a larger group, consensus decisions strive for agreement among all participants, and collective decisions focus on gathering input to reach a conclusion together. Each of these alternatives emphasizes collaboration, fostering a different kind of environment compared to authoritarian decision-making.