Choose the antonym of the word ‘Danger’ .

Safety is the opposite of danger.

The word "Danger" refers to a situation where there is a risk or potential harm. Its antonym, "Safety," represents a state where there is protection from harm and no risk involved.

While dark, dull, and bright may have some relation to mood or visibility, they do not directly oppose the concept of risk or harm. On the other hand, Safety directly conveys the absence of danger, making it the most appropriate antonym.