unaccountable
adjective /ˌʌnəˈkaʊntəbl/
/ˌʌnəˈkaʊntəbl/
(formal)- impossible to understand or explain synonym inexplicable
- There has been an unaccountable increase in cases of the disease.
- For some unaccountable reason, the letter never arrived.
- unaccountable (to somebody/something) not having to explain or give reasons for your actions to anyone
- Too many government departments are unaccountable to the general public.