Jeevesian is a term derived from the fictional character Jeeves, who is known for his exceptional intelligence and problem-solving abilities. If you are looking for synonyms for Jeevesian, you can use words like sagacious, astute, knowledgeable, perceptive, sharp-witted, and insightful. These words embody the same characteristics as Jeeves and convey the same sense of intellectual prowess. Additionally, you could use adjectives like resourceful, inventive or innovative to describe a Jeevesian way of thinking which goes beyond mere intelligence. Overall, Jeevesian is a term that describes someone who is uniquely gifted in using their knowledge and intellect.