What does it mean to 'falter'?

The word 'falter' refers to the act of moving or progressing with hesitation or uncertainty, often indicating a lack of confidence or a potential inability to continue. When someone falters, it suggests that they are not moving forward with assurance; instead, they may pause or stumble, as if they are unsure of their next step. This definition aligns with the idea of moving hesitatingly or being on the verge of giving way.

The context of the other options demonstrates contrasting behaviors. Accelerating and moving quickly implies confidence and decisiveness, while acting with confidence suggests certainty and clarity in one’s actions. Retreating from a challenge indicates an act of avoiding confrontation rather than showing any form of hesitation in movement. Therefore, 'falter' specifically captures the essence of indecision, making the first option the most accurate representation of the term.