Definitions

1. noun

a theory in philosophy, particularly in existentialism, that individual existence is unique and cannot be reduced to any general principles or categories.

“The philosopher’s central argument revolved around the concept of heterism, which emphasized the importance of individual experience.”

2. noun

a tendency to avoid people or situations that are perceived as different or unfamiliar.

“The community’s heterism was evident in its reluctance to accept outsiders, leading to a sense of isolationism.”