Missingness

Part of speech: noun

Pronunciation: /ˈmɪs.ɪŋ.nəs/

Definitions

1. The state or quality of being absent, unavailable, or lacking in a dataset or situation
2. The characteristic of a dataset where certain values or elements are absent, leading to potential gaps in analysis or interpretation
3. The condition in which particular data points or observations are not present, resulting in incomplete information or analysis for study or evaluation

Etymology: The word is simply "missing" with the suffix "-ness" attached, and the suffix itself has a long pedigree. "-ness" descends from a Proto-Germanic noun-forming ending that was used to turn adjectives into nouns of state or quality. It arrived in English as Old English "-nes," later "-nesse," and it has been the everyday way to turn an adjective into an abstract noun ever since. Words like "kindness" and "darkness" follow the same pattern. "Missing" itself is an older English word, meaning absent or lacking, that came from the verb "miss." So "missingness" is a transparent formation: the state of being missing. Its meaning has narrowed over time in specialized use. In statistics and data science, it names the condition where some observations in a dataset are simply absent, which can distort any analysis built on them.

Synonyms: absence, lack, deficiency, omission, nonexistence

Antonyms: presence, existence, availability, completeness, sufficiency