Which term best describes a communication that suggests a lack of sincerity or avoidance of truth?

The term that best describes a communication suggesting a lack of sincerity or avoidance of truth is "ambiguit." This term signifies a lack of clarity or definitiveness in communication, often resulting in confusion or misinterpretation. When someone communicates ambiguously, they may not be straightforward or honest, thereby avoiding the truth. This allows individuals to dodge direct answers or to convey messages in a manner that can be interpreted in multiple ways, leading to a perception of insincerity.

In contrast, denial suggests refusing to accept reality or the truth outright, rather than a lack of clarity. Defensiveness implies a reaction to perceived criticism or threat, which could involve evasion but does not inherently connote insincerity. Transparency, on the other hand, promotes honesty and openness in communication, standing in stark contrast to the idea of avoidance or insincerity.