This is the 12692nd most frequent Russian word.
корректной
"Correct" or "proper."
The word "корректной" is used to describe behavior as proper and respectful.
Её поведение было весьма корректной.
Her behavior was very correct.
Here, "корректной" implies adherence to etiquette in communication.
Мы должны вести корректной перепиской с клиентами.
We must maintain proper correspondence with clients.
In this context, "корректной" signifies accuracy and appropriateness.