The antonyms for the word "most straight-arrow" can be described as someone who is dishonest, deceptive, or untrustworthy. These individuals may be considered crooked, shady or unreliable. Being termed as "most straight-arrow" means being seen as someone who values integrity and moral correctness, while those who are antonyms of them may lack these qualities. These antonyms are often associated with negative traits such as being crooked or having dubious intentions. It is essential to differentiate between people with a strong moral code and those who do not, as it can significantly impact success, relationships, and overall reputation.