relating to the antipodes or situated at opposite sides of the earth; "antipodean latitudes"; "antipodal regions of the earth"; "antipodal points on a sphere"
to the greatest distance in space or time (`farthest' is used more often than `furthest' in this physical sense); "see who could jump the farthest"; "chose the farthest seat from the door"; "he swam the furthest"
highly educated; having extensive information or understanding; "an enlightened public"; "knowing instructors"; "a knowledgeable critic"; "a knowledgeable audience"
an officer holding a commissioned rank in the United States Navy or the United States Coast Guard; below lieutenant commander and above lieutenant junior grade