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Synonyms

unaccounted-for

American  
[uhn-uh-koun-tid-fawr] / ˌʌn əˈkaʊn tɪdˌfɔr /

adjective

  1. not accounted for; not understood; unexplained.

    an explosion resulting from some unaccounted-for mechanical failure.


Etymology

Origin of unaccounted-for

1790–1800; formed on the verb phrase account for; see un- 1, -ed 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Asked about the fate of the thousands of unaccounted-for canines, he acknowledged they had likely "already been eaten."

From Barron's Jun. 28, 2026

The authors also noted that other, unaccounted-for health or lifestyle factors may have influenced the results.

From Science Daily Oct. 27, 2025

In 2017, Kubinec’s casket was among 35 exhumed that were associated with the West Virginia and sent for DNA testing by the Defense POW/MIA Accounting Agency, which works to recover and identify unaccounted-for soldiers.

From Los Angeles Times Dec. 6, 2024

But it later confirmed there was another unaccounted-for passenger on the flight.

From BBC Aug. 10, 2024

Gies & Co. still had some unaccounted-for thousand-guilder bills, which they used to pay their estimated taxes for the coming years, so everything seems to be aboveboard.

From "The Diary of a Young Girl" by Anne Frank

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