The phrase "a terrifying combination" is correct and usable in written English.
It can be used to describe a mix of elements that evoke fear or dread.
Example: "The movie was a terrifying combination of horror and psychological thriller that kept me on the edge of my seat."
Alternatives: "a frightening mix" or "a chilling blend."
What he does have is freakish athleticism – a terrifying combination of size, power and explosiveness.
Katey Sagal, who plays Clay's wife, is a terrifying combination of scars, tattoos and iron will.
In 2009 SFX named the climax with the Weeping Angels advancing on Sally and Larry the scariest moment in Doctor Who history, describing it as "a terrifying combination of scary concept and perfect direction".
Information omniscience, combined with the authority to monitor, detain, torture or kill at whim -- each of which has been the object of bipartisan consensus across the Bush & Obama administrations -- will be a terrifying combination when those powers inevitably fall into the hands of less conscientious leaders.
Geoff Grimmer was short, grey, and (it seemed to me) a terrifying combination of knowledgeable and indignant.
When she drops over the body of her dead partner, he remarks: 'She fell funny.' The performances, carefully orchestrated in an overall ensemble, range from Nicholson's terrifying combination of menace and charm to the authentic mixture of integrity and sleaziness conveyed by Alec Baldwin's ageing chief detective.
The terrifying combination of screen-slasher Michael Myers and the film's chilling arpeggiated theme tune receives the loudest cheer of all – and ensures that everybody watching will have a nervous journey home.
The wheel can come up with some terrifying combinations, but it sometimes also serves as motivation by throwing a bunch of hundred dollar bills into the mix for people who land the tricks. .
Now you will see a terrifying video, terrifying".
What a terrifying thought.
