Missing

Part of speech: adjective, verb

Pronunciation: /ˈmɪsɪŋ/

Definitions

1. The absence of something expected or required is identified
2. A state where an object, person, or information is not present is recognized
3. The condition of failing to be found or existing in a given context is noted

Etymology: "Missing" is a straightforward formation: the verb "miss" with the suffix "-ing" added, and the participle or adjective sense grew naturally from the verb's sense of failing to hit, reach, or find something. The adjective describes something that is not where it should be, or someone who is absent, and its everyday use as a sense of loss follows from the same idea: a thing noticed by its absence.

Synonyms: absent, lost, unaccounted, lacking, disappeared

Antonyms: present, found, available, attending, included