What is the meaning of unaccountable in tamil?

Meaning(s):

1. not to be accounted for or explained
2. free from control or responsibility
3. not explainable; mysterious
4. अनुत्तरदायी Too many government departments are unaccountable to the general public.
5. दुरूह There has been an unaccountable increase in cases of the disease./ for some unaccountable reason, the letter never arrived.
6. न समझाया जा सकने योग्य Perceptible only as unaccountable influences that hinder progress
7. Arcane, Astonishing, Baffling, Extraordinary, Impenetrable, Incomprehensible, Inexplicable, Inscrutable, Unexplainable, Mystic, Odd, Peculiar, Puzzling, Strange, Uncommon, Unfathomable, Unheard-of, Unintelligible, Unknowable, Unusual, Unwonted
8. Accountable, Comprehensible, Explainable, Responsible