欠けつ落らく

noun, noun or participle which takes 'suru', intransitive verb

lack; absence; omission; missing part

Refers to something that should be present but is missing, such as a gap in data, a missing element, or an omission. Often used in formal or technical contexts.

• 報ほう告こく書しょに重じゅう要ようなデータの欠けつ落らくがあった。

  There was an omission of important data in the report.