counterfactuality means the quality of being counterfactual. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- The quality of being counterfactual.“Malkin and Stacks, along with Robert Dallek, James McPherson and other contributors to the anthology (edited by Robert Cowley) take such questions as the jumping-off points for exercises in counterfactuality, the historian's term for speculation about how the past might have unfolded if a particular event had happened otherwise.”