Which format eliminates indentation for action descriptions in scripts?

The format that eliminates indentation for action descriptions in scripts is paragraph form. In this style, the action is written as continuous prose rather than being broken up into lines that are indented. This allows for a more straightforward and cohesive reading experience, especially useful in certain types of writing where clear narrative flow is preferred.

In contrast, the other formats—bullet points, single line format, and indented format—tend to create distinct separations in the text, either by breaking it into concise points or using indentation to signify new actions or descriptions. Each of these methods has its own applications in scriptwriting but does not achieve the same uninterrupted flow characteristic of paragraph form. Thus, paragraph form is specifically recognized for its lack of indentation, making it the correct choice in this context.