Which characteristic highlights the necessity of a clearly defined deadline for goal achievement?

The characteristic that highlights the necessity of a clearly defined deadline for goal achievement is time-bound. Goals that are time-bound include a specific timeframe for completion, which encourages accountability and prioritization of tasks. By setting a deadline, individuals or teams can stay focused and motivated, ensuring that they allocate sufficient resources and effort toward achieving the goal within the designated period. This aspect is crucial because deadlines create a sense of urgency and can drive action, ultimately leading to better time management and productivity in the pursuit of the goal.

While other characteristics like being specific can clarify what needs to be achieved, it is the time-bound aspect that emphasizes when it should be accomplished, making it a critical component of effective goal-setting.