unacknowledged
un-ac-knowl-edged
adjective
Not recognised, accepted, or given credit for its existence, truth, or value.
"His significant efforts went unacknowledged by the committee."
Thesaurus
Synonyms: unconfessed, unavowed, secret, unrecognized, unsung, unvalued, unappreciated, unrecognised, undeclared
Antonyms: acknowledged