Inner Nature is a term that refers to the ESSENCE of a person's character and personality. It is often used to describe the core of a person's being, their SOUL or innermost self. The crossword solutions for Inner Nature are ESSENCE (7 letters) and SOUL (4 letters). ESSENCE is defined as the intrinsic nature or indispensable quality of something, while SOUL is defined as the spiritual or immaterial part of a human being or animal. Together, these two words capture the concept of Inner Nature, which is the fundamental ESSENCE of a person's character and personality.