In literature, "unsure" often conveys a sense of hesitation or unsettled emotion that reflects the characters' inner turmoil or the ambiguous nature of their circumstances. It appears in dialogue and narrative to demonstrate both emotional and physical uncertainty—as when a character speaks with a "thick, unsure voice" ([1]), or when an individual is depicted as trembling on "unsure feet" in a moment of tension ([2]). At a broader level, the word encapsulates feelings of doubt about future prospects or internal states, suggesting that fate or personal conviction remains indeterminate ([3], [4]). Thus, writers use "unsure" not only to characterize personal indecision, but also to hint at the inherent instability of life and the complexity of human thought and behavior ([5], [6]).