Simple Definition of unaccountably
: in a way that is difficult to explain or understand : for reasons that are hard to understand
Full Definition of unaccountably
1 : in an unaccountable manner <looking unaccountably upset> <heat was unaccountably disappearing>
2 : for reasons that are hard to understand <unaccountably, he stayed right there>
Examples of unaccountably
She was looking unaccountably upset.
Unaccountably, the problem was ignored.
First Known Use of unaccountably
Seen and Heard
What made you want to look up unaccountably? Please tell us where you read or heard it (including the quote, if possible).