The Collaborative International Dictionary of English v.0.48:
acknowledged \ac*knowl"edged\ ([a^]k*n[o^]l"[e^]jd) adj. Generally accepted or recognized as correct or reasonable. Opposite of unacknowledged. [Narrower terms: given, granted; unquestionable (vs. questionable)] Also See: known. Syn: accepted, recognized [WordNet 1.5 +PJC]