The term "more unprompted" suggests a level of spontaneity or impulsiveness. Antonyms for this phrase could include "calculated," "premeditated," or "deliberate." These words imply that the action being taken is well thought-out and planned in advance. Other antonyms might include "reserved," "hesitant," or "cautious," indicating a greater level of consideration and restraint. Additionally, "unwilling," "reluctant," or "hesitant" could be antonyms for "more unprompted," indicating a lack of initiative or inclination to act without prompting or encouragement. Ultimately, the choice of antonym will depend on the context in which the original phrase is being used.