Unsung Definition

ŭn-sŭng
adjective
Not honored or praised; uncelebrated.
An unsung hero.
American Heritage
Not sung.
Webster's New World
Deserving but not receiving honor or public praise.
An unsung hero of the labor movement.
Webster's New World

Which has not been lauded or appreciated.

The backstage crew of the movie were the unsung heroes.
Wiktionary
Synonyms: