unacknowledged

US /ˌʌn.ækˈnɑː.lɪdʒd/
UK /ˌʌn.ækˈnɑː.lɪdʒd/
1.

未被承认的

not accepted, admitted, or recognized:

:
•
Her contibution to the field of astronomy often goes unacknowledged.