missingness

listen to the pronunciation of missingness
الإنجليزية - الإنجليزية
Absence

That is, feelings of missingness and hurt — the usual interpretation of Wound — being lopsided perceptions, each contain the tacit feeling that the opposite can exist on its own.

Missing data
The manner in which data are missing from a sample of a population

Some imputation models require the data to have a certain distribution of their missing values, their missingness pattern.