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completely lacking nobility in character or quality or purpose; "something cowardly and ignoble in his attitude"; "I think it a less evil that some criminals should escape than that the government should play an ignoble part"- Oliver Wendell Holmes, Jr.
characteristic of or similar to the corruptible soldiers in the Praetorian Guard with respect to corruption or political venality; "a large Praetorian bureaucracy filled with ambitious...and often sycophantic people makes work and makes trouble"- Arthur M.Schlesinger Jr.