The phrase "a foreign phenomenon" is correct and usable in written English.
It can be used to describe an occurrence or event that is unfamiliar or originates from outside a particular context or culture.
Example: "The rise of social media influencers is a foreign phenomenon to many traditional marketing professionals."
Alternatives: "an unfamiliar occurrence" or "an external event".
It's not a foreign phenomenon.
After the attack that took place last week in Urumqi, in the Chinese state of Xinjiang, it has become clear that terrorism is no longer a foreign phenomenon.
Old stone, as far as I was concerned, was a foreign phenomenon, something I only experienced abroad, rather like a friend's dalliances with European waiters.
Illegal logging is not only a foreign phenomenon: in the nineteen-nineties, it was estimated that a hundred million dollars' worth of trees were stolen from public lands every year.
Yet police corruption in the drug war is often depicted by the media as a foreign phenomenon, consigned to countries with notoriously powerful cartels such as Mexico or Colombia despite decades of high-profile examples of US authorities breaking bad, too.
All in all, Calcio does a stand-up job of taking a complex foreign phenomenon and making it both simple and entertaining.
It introduces an unhealthy and foreign phenomenon into American academia.
With a hefty offer of $13,125,000, the Seattle Mariners beat out the Mets and two other teams for the rights to the latest foreign phenomenon, Ichiro Suzuki, an outfielder who has won seven successive batting championships in Japan's Pacific League.
Statistics aside, the Queens case is a reminder that West Nile is not a foreign, ephemeral phenomenon that made an anomalous splash one year and then vanished.
Trying to understand foreign phenomena through the lens of our own is extremely dangerous and can engender a Western-superiority complex.
Breen suggests that Americans today "have come to regard insurgency as a foreign and unpleasant phenomenon" and are now so imperial in outlook that we'd rather not remember that American revolutionaries, too, were irrational and cruel.
