What term describes someone who is excessively afraid of danger or pain?

The term that best describes someone who is excessively afraid of danger or pain is "timorous." This word specifically refers to an individual who exhibits a persistent and overwhelming fear, often to the point where it affects their ability to act or make decisions. In contrast, "fearful" is a more general term that can apply to a wide range of situations and doesn't necessarily indicate an excess of fear. "Coward" also applies to someone who avoids danger, but it carries a more judgmental connotation and suggests a moral failing rather than describing the psychological state of being excessively afraid. "Brave," on the other hand, directly describes someone who confronts danger or pain with courage, standing in stark contrast to the concept of excessive fear.

Thus, "timorous" accurately encapsulates the idea of someone who is characterized by an overwhelming and often paralyzing fear of danger or pain, making it the most appropriate choice for this description.