unaccounted forun‧ac‧count‧ed for /ʌnəˈkaʊntəd fɔː $ -fɔːr/ adjectiveExamples
EXAMPLES FROM OTHER DICTIONARIES
Fifteen people are still unaccounted for after the fire.
something or someone that is unaccounted for cannot be found or their absence cannot be explained: Two people are still unaccounted for after the floods.