Unsung (adjective)

Not celebrated or acknowledged for one's achievements or contributions.

Origin:

From un- (not) + sung (praised or celebrated).

Examples:

1. He was an unsung hero, who made a huge impact but never received the recognition he deserved.
2. She was an unsung genius, her work was overlooked and underappreciated.
3. The band was unsung, they never got the attention they deserved.
4. The unsung workers behind the scenes were the ones who made the event a success.
5. Many unsung people have made contributions to the world that are not known to the public.