What does "unheralded" mean?

The term "unheralded" means something that has not been recognized, acknowledged, or celebrated, often indicating that it is unnoticed or unappreciated despite possibly having merit or significance. This aligns perfectly with the choice indicating that something is unacknowledged or overlooked by others, providing insight into the lack of recognition it receives.

In contrast, other interpretations such as being "very well-known," "highly celebrated," or "frequently mentioned" denote a degree of recognition or acclaim that is not associated with the term “unheralded.” Therefore, the essence of the word revolves around the idea of being obscure or lacking in recognition, which is captured by the choice that highlights its unnoticed status.