"Horror-stricken" Natural Recordings by Native Speakers
Horror-stricken refers to being filled with extreme fear or terror, often as a result of a terrifying or shocking experience. It can also describe a person's facial expression, which is typically pale, shocked, and frightful.
To horrify someone or something means to shock, frighten, or disgust them. It can also mean to make something seem or seem like it is frightful, terrifying, or appalling.