The term "double-crossing" is often used to describe someone who betrays another person's trust or loyalty. Therefore, antonyms for the phrase "most double-crossing" would imply virtues such as honesty, integrity, and trustworthiness. Some antonyms for double-crossing may include faithful, loyal, honest, dependable, trustworthy, reliable, sincere, and genuine. These words express the opposite of betraying someone's trust and present the qualities of an upright character. Furthermore, using positive antonyms helps to focus on the righteous qualities of someone and promotes the idea of virtue. By embracing these antonyms, individuals can be reminded of the importance of loyalty, fidelity, and honesty.