'Meliorism' definitions:

Definition of 'meliorism'

From: WordNet
noun
The belief that the world can be made better by human effort

Definition of 'Meliorism'

From: GCIDE
  • Meliorism \Mel"io*rism\, n. [From L. melior better.] The doctrine that there is a tendency throughout nature toward improvement. --J. Sully. [1913 Webster]