UK Clinical Aptitude Test (UKCAT) Practice Test

The term 'potent' in the context of effectiveness refers to something that has a strong effect or is highly effective. When something is described as potent, it conveys that it has a significant capacity to produce an effect, making it very powerful and forceful in its actions or results. This is particularly relevant in fields such as medicine, where a potent drug can bring about noticeable changes in a patient's condition.

In contrast, the other descriptions imply varying degrees of ineffectiveness or lower effectiveness. For instance, being weak and ineffective indicates a lack of strength or ability to produce an impact, while being moderately useful and somewhat impactful suggest only a limited or average capability to effect change. Hence, the definition of 'potent' aligns best with the notion of being very powerful and forceful, emphasizing its capacity for strong effectiveness.