What term describes someone who is extremely careful and precise, excessively concerned with details?

The term that describes someone who is extremely careful and precise, and who is excessively concerned with details, is "meticulous." This word conveys a strong sense of thoroughness and a desire to ensure that every aspect is attended to with care. Individuals who are meticulous often go above and beyond in their attention to detail, making sure that everything is correct and to the highest standard. This characteristic is valuable in many fields, such as quality control, research, and project management, where precision is critical to success.

In contrast, the other terms do not embody this focus on carefulness and detail. For instance, "negligent" refers to a lack of proper care or attention to detail, which is the opposite of being meticulous. "Indifferent" describes a lack of interest or concern, suggesting that the individual does not pay close attention to details. Similarly, "imprecise" indicates a lack of accuracy or clarity, which directly contradicts the notion of being meticulous. Therefore, "meticulous" is the correct term to describe someone whose approach is characterized by extreme care and detail-oriented precision.