unsung

adjective

1. not sung; not uttered or rendered by singing.
2. not celebrated in song or verse; not praised or acclaimed: the unsung heroes of the war.

adjective

1. not acclaimed or honouredunsung deeds
2. not yet sung

adj.early 15c., “not uttered in a song,” from un- (1) “not” + past participle of sing. Cf. German ungesungen. Meaning “not celebrated” is recorded from 1660s.