What does ‘fastidious’ imply about a person's attention to detail?

The term "fastidious" describes a person who is very attentive to detail and has high standards for accuracy and precision. Such individuals are often meticulous in their work and can be very concerned with the finer points that others might overlook. This meticulousness indicates a strong desire for correctness and can sometimes suggest a level of fussiness or excessive care.

In contrast, irregular implies a lack of consistency or order, which does not align with the concept of fastidiousness. Attendance relates more to being present or participating and does not address attention to detail. Festivity suggests a joyful or celebratory atmosphere, which is unrelated to the carefulness associated with being fastidious. Thus, the correct choice captures the essence of the word by highlighting the importance of accuracy and concern about detail in the character of a fastidious person.