Lewisian

Adjective

 * 1) Of or relating to  (1898–1963), writer and theologian, known for the children's fantasy series  and for non-fictional Christian apologetics.
 * 2) Of or relating to  (1883–1964), American academic philosopher and the founder of conceptual pragmatism.
 * 3) Of or relating to  (1941–2001), American philosopher.