unknowable

One source suggested frankly, even for those who work closely alongside him, it's often hard to work out what the prime minister thinks, telling me: "He often appears unknowable."

Some of those who do answer are previous callers who, for unknowable reasons that make sense only to them, also feel compelled to visit the booth.

“Nobody knows me. My one dominant quality is I’m unknowable,” Demascus tells her.

Floating in the vastness of unknowable space, our miniscule planet contains all of our stories — victories and tragedies orbiting around a dying star.

The arc on the writers’ room wall gives you an illusion of control and intention, but the real road is unknowable.