The phrase "a hidden threat" is correct and usable in written English.
It can be used to describe a danger or risk that is not immediately obvious or visible.
Example: "The investigation revealed a hidden threat lurking within the organization that could jeopardize its future."
Alternatives: "an unseen danger" or "a concealed risk."
William Callahan of Britain's Durham University argues that the peaceful-rise notion could be read as a hidden threat.
According to the UN, endocrine disruptors – chemicals that interfere with the hormonal systems of humans and wildlife – are a hidden threat, and agricultural effluent is often the source.
"Zika poses a hidden threat to future generations of Puerto Ricans, and I feel the responsibility to do everything in my power to fight the spread of it," he said.
Is there a hidden threat right under our noses?
The identification performances should facilitate the detection of a hidden threat, ranging from special nuclear materials (SNM) to commonly used radiological sources.
But beneath the bluntness of the Rifkind attack is a more hidden threat.
With thousands of semi-independent rebel fighters still roaming the streets for any hidden threats, though, controlling the impulse to round up migrants may not be easy.
At the news that someone else's in-flight snack might pose yet another hidden threat, she looks tense.
We should avoid panic responses in the immediate wake of horrible deaths, but on the other hand we should be more aware of the hidden threat when the surface of the pond seems still.
Driving these persistent imbalances are what city officials portray as the hidden threat to the city's future fiscal health: the "nondiscretionary" costs, mostly for Medicaid, employee pensions and interest on municipal debt, that the mayor says are largely beyond his control.
