The phrase "most pausing" can be replaced with a variety of synonyms to convey a similar meaning. Some possible choices include "most hesitating," "most lingering," "most delaying," or "most faltering." Alternatively, one could also use phrases like "most indecisive," "most cautious," or "most careful." The exact choice of synonym may depend on the context and tone of the situation. For example, "most faltering" might be appropriate for describing a person who is uncertain or lacking in confidence, while "most cautious" might be better suited for discussing a situation that calls for careful consideration and deliberation.