Known Known synonyms noted known and noted notorious known and notorious well-known known and well-known acknowledged known and acknowledged recognized known and recognized familiar known and familiar celebrated known and celebrated famous known and famous admitted known and admitted avowed known and avowed Full list of synonyms (646) Known antonyms unknown known and unknown unfamiliar known and unfamiliar unidentified known and unidentified secret known and secret obscure known and obscure undiscovered known and undiscovered uncharted known and uncharted uncommon known and uncommon hidden known and hidden concealed known and concealed Full list of antonyms (49) Share this picture Share this image Share this picture Share this image