un ‧ ac ‧ count ‧ ed for /ʌnəˈkaʊntəd fɔː, ʌnəˈkaʊntɪd fɔː $ -fɔːr/ BrE AmE adjective
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.
un ‧ ac ‧ count ‧ ed for /ʌnəˈkaʊntəd fɔː, ʌnəˈkaʊntɪd fɔː $ -fɔːr/ BrE AmE adjective
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.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012