The phrase "in the dark" can have various synonyms, each with different connotations. Firstly, "unaware" gives an impression of being ignorant or not informed about something intentionally or unintentionally. Secondly, "unenlightened" alludes to a lack of knowledge or understanding of a specific issue or situation. Thirdly, "oblivious" suggests a complete lack of awareness about something that is happening around one's environment. Lastly, "clueless" is an informal synonym that implies a total lack of knowledge or understanding of a situation. Regardless of the synonym used, it is clear that being "in the dark" causes one's perception to be clouded, which can have serious consequences.