If the outliners are removed, what does the data set mean below?

21, 23,19,25,83,23,21

Without knowing the specific criteria for identifying outliers, it is impossible to determine what the data set means with the outliers removed. However, the resulting data set would be:

21, 23, 19, 25, 23, 21

From this data set, the mean would be approximately 22. The meaning of this data set would depend on the context in which it was collected and the specific information being analyzed.