# completeness

/kəmˈpɫitnəs/ (US) · /kəmplˈiːtnəs/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/completeness
Updated: 2026-05-08

## Definition

the state of having all the parts or details that are needed. It means nothing is missing and the work is finished.

For teachers: the state or condition of being entire or having all necessary components. Often refers to the integrity of a data set or the finished state of a logical system.

## Examples

- The lawyer checked the file for completeness.
- The project manager insisted on the completeness of the report before submitting it to the board of directors.
- In formal logic, a system achieves completeness if every statement that is true within that system can also be proven using its specific set of rules.

## Usage notes

- Uncountable in its abstract sense; frequently paired with the preposition 'of'.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.