What is the term for the act of pausing uncertainly?

The term "waver" refers specifically to the act of pausing uncertainly, often implying a fluctuation or indecision between choices or opinions. When someone wavers, they may display signs of uncertainty, making them hesitant to commit to a particular course of action or decision. This term captures the essence of indecisiveness and the struggle to maintain a steady course amidst doubts.

In contrast, "hesitate" also suggests uncertainty in action or decision-making, but it is more commonly associated with the initial pause before proceeding rather than an ongoing indecision. "Pacing" relates to walking back and forth, often out of anxiety or anticipation, without directly reflecting uncertainty in decision-making. "Stumble" typically refers to physically tripping or faltering, which does not convey the same concept of vacillation or doubt that "waver" does. Therefore, "waver" is the most precise choice for describing the act of pausing uncertainly.