Final answer:
In the transtheoretical model of behavior change, a person with no intention of adopting a new behavior is in the Precontemplations stage.
Step-by-step explanation:
According to the transtheoretical model of behavior change, a person who has no intention of adopting a new behavior is in the Precontemplations stage of change. In this stage, individuals may be unaware of the need to change, deny the relevance of the behavior to their situation, or they may have attempted to change in the past and become demoralized about their ability to do so. This model is vital for understanding how people progress in making behavioral changes and can be highly applicable in various health interventions, where recognizing a person's readiness to change is essential for planning effective strategies.