'frightening events' is correct and usable in written English.
You could use it to describe something that is frightening or to refer to frightening events that have happened in the past. For example, "We have seen many frightening events in recent years that have changed the world forever."
It also successfully distracted the French from the frightening events taking place in Germany.
I feel like people my age have grown up with some serious and frightening events going on around us.
"We saw this last year when the fundamentals were sound in terms of corporate profits, but frightening events helped scare people away" from investing in business jets.
In his speech, Hollande appeared strong, rather than arrogant, finding the right words to respond to the frightening events of the day.
Yet just as people respond differently to frightening events, the cues that elicit traumatic memories may differ for different people exposed to the same events.
Before the 1977 nostalgia passes, we should recall another series of frightening events from that year that hold lessons for today.
"This terrible, frightening event underlines the fact that it is necessary".
Every frightening event, no matter how negative it might seem from the sidelines, has the potential to be traumatic or not to the person experiencing it.
Many of these stories include a sudden death or frightening event that serves as an ironic ending or a portent of other losses.
While news that your child has a malignant brain tumor remains a life-altering, frightening event, there is renewed reason for hope.
I have gone through a lot with this person and she has been a source of endless encouragement and support, but I never knew about this horrible, frightening event in her life.
