What does incompleteness mean?
Incompleteness is the noun meaning the condition of being unfinished, insufficient, or missing some necessary part. It is used when a document lacks details, a record is not fully available, a process has not reached its conclusion, or someone’s understanding remains partial. The word often appears in formal and analytical contexts, such as discussions of evidence, data, research, communication, and knowledge. “The incompleteness of the report” identifies the problem itself, while “a lack of completeness” is a less formal alternative. Because the term focuses on a missing component rather than a necessarily incorrect one, it can describe something that is plausible and useful but still insufficient for a particular purpose. It is a precise way to identify the presence of a gap without necessarily assigning blame.
nounThe state of being incomplete or lacking some part, detail, or conclusion. It refers to something unfinished, insufficient, or not fully realized.
- The state of being incomplete or unfinished.
- The state of lacking some part, detail, or degree of development that is necessary or expected.
"The incompleteness of the report made it difficult to make an informed decision."
"The incompleteness of the witness statement left the investigators with several unanswered questions."
"She accepted the incompleteness of her knowledge and continued researching the topic."
Rare in ordinary use; the uncountable form is standard in most contexts.
"The report discussed the incompletenesses of the surviving records."
Incompleteness is often more revealing than error: a flawed answer can be corrected, but an unfinished one leaves the question open.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does incompleteness come from?
The word is formed from the prefix in- meaning “not” and complete, with the suffix -ness forming an abstract noun. Complete derives from Latin completus, meaning “filled up” or “finished,” from com- and plere, “to fill.” Related English words include completion, completeness, and complement, all of which reflect the same Latin root.
Related word forms
How incompleteness is actually used
This is a formal noun, especially common in academic, legal, technical, and analytical contexts. It is usually used as an uncountable noun, though “incompletenesses” is possible in formal or specialized writing.
Easily confused with incompleteness
Both words refer to being unfinished, but “incompletion” more often describes the process or condition of not being completed, while “incompleteness” commonly emphasizes the resulting lack of completeness.
“Incompleteness” is the noun for the state of being incomplete, whereas “incomplete” is the adjective describing something that lacks a necessary part.