What is the meaning of "unheralded"?

The term "unheralded" refers to something that has not received prior acknowledgment, praise, or recognition. It typically describes someone or something that operates without fanfare or public attention, suggesting that their accomplishments or contributions may go unnoticed or unappreciated by the broader audience.

In this case, the choice that aligns most accurately with this definition is the one that indicates a state of being "not appreciated or unnoticed." Therefore, this answer captures the essence of being unheralded. The other choices imply recognition and visibility, which directly contrast the meaning of unheralded.