Which term best describes a scenario lacking important details?

The term "extraneous" refers to information that is not relevant or is unnecessary, often leading to confusion or a lack of clarity. In the context of a scenario lacking important details, describing it as extraneous suggests that the essential elements are missing or that the information provided is not pertinent to understanding the core of the situation. This implies an absence of important details that would typically contribute to a more complete understanding.

On the other hand, nuanced indicates subtle distinctions or variations in meaning, which is not relevant to a lack of details. Convincing refers to something that persuades or influences belief, which does not pertain to the presence or absence of relevant information. Comprehensive means thorough and all-encompassing, which is the opposite of a scenario that is lacking important details. Therefore, extraneous is the most fitting term to describe a scenario where critical information is absent.