This made him somehow very aware of the sweater, for a reason unknowable until he slipped out of the squeezebox and broke into a new chamber.

They'd ganged up and, for their own unknowable reasons, had held the world to ransom.

I thought that he was someone who, for some unknowable reason, chose to live there.

Canadian NetFlix is streaming only --- no mailed DVDs (and no queue for some unknowable reason).

And let the audience applaud for whatever unknowable reasons might be hiding in its multiple heart.

Then, late Saturday afternoon, for some unknowable reason a light went on in the reptilian core of Beck's inanimate brain and he floated back to consciousness.

Lurking in the back of many a PC owner's mind is the nagging fear that the machine is booby-trapped to foul up unfixably for an unknowable reason at an unpredictable but crucial moment.

Its bright, unwavering gaze disturbed her for some unknowable reason.

The idand fixe that had captured the public's fancy and fear was that Mr. Smith might be an alien visitor roaming and ravaging the earth for dark, unknown, perhaps unknowable reasons.

Some of the larger growths lurched back and forth under their own volition, on unguessable errands for unknowable reasons.