Nurikabe is a Japanese folklore creature that is known for forming invisible walls that block travelers' paths at night. In English, the word "nurikabe" has no true synonyms as it is unique to Japanese culture and storytelling. However, words such as barrier, obstruction, impediment, and obstacle might be used in English to describe the creature's behavior of blocking paths. In a broader context, the word "nurikabe" can represent mental or emotional barriers that prevent a person from achieving their goals. In this case, words like hindrance, barrier, setback, or roadblock might be used to describe the obstacle.