Arthur Schlesinger art·hursch·le·singer uncommon noun 1. United States historian and advisor to President Kennedy (born in 1917) SynonymsSchlesingerArthur SchlesingerArthur Schlesinger Jr.Arthur Meier Schlesinger Jr. 2. United States historian (1888-1965) SynonymsSchlesingerArthur SchlesingerArthur Meier Schlesinger Related words Word family Arthur Schlesinger Jr. Broader terms historian WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.