Definitions

1. adjective

characterized by or based on the principle of duality, especially in philosophy (notably in the philosophy of Gnosticism and Manichaeism) and psychology (notably in Jungian psychology).

“The dualistic worldview of the ancient philosophers has had a lasting impact on modern thought.”

2. noun

a theory or system that is based on the principle of duality.

“The dualistic theory in the novel explores the concept of good vs. evil.”