What does it mean for language to be insincere?

Language is considered insincere when it is artificially persuasive. This means that the words being used are not a genuine reflection of the speaker's true feelings or intentions; rather, they are crafted to manipulate or sway the listener’s opinion without authenticity. Insincerity often involves using language that sounds appealing or convincing but lacks a foundation of honesty or truth.

In contrast, straightforward and honest communication reflects sincerity, while language that is hard to understand or excessively formal may not convey insincerity, but instead can arise from different contexts, such as complexity or a high level of professionalism. Therefore, the concept of insincerity is closely tied to the idea of manipulation through persuasive language rather than genuine expression.