fortuitism

Century Dictionary and Cyclopedia

1. n. The doctrine of a fortuity in the action of natural causes, as opposed to design.
2. n. The doctrine that a tendency in the universe toward a certain direction of development may be accounted for by continual fortuitous changes, combined with an inherent possibility of an indefinite sum of change in the direction which development takes and an inherent impossibility of an indefinite sum of change in the opposite direction. The case is supposed to be analogous to that of a large number of gamblers playing against one another. Some of them are ruined from time to time and drop out of the game; and thus the average capital of those who remain tends to increase.

Wiktionary

1. n. The doctrine that chance is involved in natural events rather than absolute determinism.