Unaccountable

Un′ac‐count″a‐ble (?), a. 1. Not accountable or responsible; free from control. South.

2. Not to be accounted for; inexplicable; not consonant with reason or rule; strange; mysterious.

— Un′ac‐count″a‐ble‐ness}, n. — Un′ac‐count″a‐bly, adv.