Which term describes a statement that is trite or banal but presented as if it were original?

The term that accurately describes a statement that is trite or banal yet presented as if it were original is "platitude." A platitude is often used in conversation or writing to convey a point that is overly simplistic or lacking in originality. It typically conveys a general truth or principle but does so in a way that feels tired and repetitive because it has been expressed many times before, losing its freshness and impact. When someone presents a platitude, they may intend to sound insightful, but the familiarity of the statement can often render it ineffective or unoriginal.

In contrast, a maxim is a wise saying or principle intended to convey a general truth, which may still retain some freshness depending on its usage. A cliché refers more specifically to a phrase or idea that has become overused to the point where it lacks originality, but it's often tied to specific familiar expressions rather than more broadly applicable statements. An adage is similarly a traditional saying that expresses a common observation or truth, but it too may carry a sense of wisdom or insight that separates it from a platitude's triteness. Thus, "platitude" stands out as the most fitting term in this context.