unaccounted-for

[ uhn-uh-koun-tid-fawr ]

adjective
  1. not accounted for; not understood; unexplained: an explosion resulting from some unaccounted-for mechanical failure.

Origin of unaccounted-for

1
1790–1800; formed on the verb phrase account for;see un-1, -ed2

Words Nearby unaccounted-for

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use unaccounted-for in a sentence