unaccountable

/ˌʌnəˈkaʊntəbəl/
adjective
  1. Not required to explain or justify one's actions; not responsible to anyone.
    • The secret committee was unaccountable to the public.
    • In a dictatorship, the leader is often unaccountable for their decisions.
    • Some government agencies remain unaccountable to voters.
  2. Impossible to explain or understand; mysterious.
    • There was an unaccountable delay in the delivery.
    • The sudden change in his behavior was unaccountable.
    • She felt an unaccountable sadness after the party.
Antonyms
What does "unaccountable" mean? | whatsthatwordmean | whatsthatwordmean