Webster's 1828 Dictionary
UNACKNOWLEDGED
a. 1. Not acknowledged; not recognized; as an unacknowledged agent or consul.
2. Not owned; not confessed; not avowed; as an unacknowledged crime or fault.
New American Oxford Dictionary
unacknowledged
un ac knowl edged |ˌənakˈnälijd ʌnəkˈnɑːlɪʤd | ▶adjective 1 existing or having taken place but not accepted, recognized, or admitted to: her unacknowledged feelings. 2 (of a person or their work ) deserving but not receiving praise or recognition.
Oxford Dictionary
unacknowledged
un |acknow |ledged |ʌnəkˈnɒlɪdʒd | ▶adjective 1 existing or having taken place but not accepted, recognized, or admitted to: her unacknowledged feelings. 2 (of a person or their work ) deserving but not receiving praise or recognition.
American Oxford Thesaurus
unacknowledged
unacknowledged adjective he made several unacknowledged contributions to the production: unsung, unstated, uncelebrated, unrewarded, neglected, unrecognized, unheeded, overlooked, forgotten, ignored; uncredited.
Sanseido Wisdom Dictionary
unacknowledged
ù n ac kn ó wl edged 形容詞 (一般に )〈価値 存在などが 〉認められていない, 無視されている .
The Wordsmith Dictionary