A reaction against materialism, emphasizing instead the importance of spiritual values, concern for the environment, etc.; a way of life based on this.
Origin
1970s. From post- + materialism, after post-materialistic.
Definition of post-materialism in US English:
post-materialism
nounˌpəʊs(t)məˈtɪərɪəlɪz(ə)m
A reaction against materialism, emphasizing instead the importance of spiritual values, concern for the environment, etc.; a way of life based on this.
Origin
1970s. From post- + materialism, after post-materialistic.