Thinking back over the strange and unaccountable event, the dinner guest wondered how the host made the glass float in midair.

By some unaccountable accident, I was placed in first class instead of my third class seat.

For some unaccountable reason, my sister decided to tell my mother about the time we broke her antique clock while wrestling.

With one look at the orphan, she felt an unaccountable love for the young boy and knew instantly that she would be his mother.

With several unaccountable break-ins occurring each day, the local police hurried to find the culprits.