When trying to convey the opposite of "CTD" or "Cannot be Trusted", several alternative expressions spring to mind. These synonyms capture the essence of doubt, skepticism, or unreliability. One may choose to employ such terms as "Undependable", suggesting a lack of reliability or trustworthiness. "Dubious" is another fitting synonym, conveying uncertainty or hesitation in placing belief or faith in someone or something. We can also consider using "Skeptical", indicating a doubting or questioning attitude towards the credibility of an individual or situation. "Unreliable" serves as another suitable synonym, highlighting the lack of fidelity in a person's words or actions. Ultimately, these words encompass the sentiment of "Not CTD", showcasing a person's wavering trustworthiness.