Contrary to known or agreed facts; untrue. / Of or in comparison to a hypothetical state of the world.

A claim, hypothesis, or other belief that is contrary to the facts. / A hypothetical state of the world, used to assess the impact of an action.

In a counterfactual way.

The quality of being counterfactual.

Third-person singular simple present indicative form of counterfactualize

plural of counterfactuality

simple past tense and past participle of counterfactualize

(transitive) To make counterfactual.

present participle of counterfactualize

The quality of being counterfactual.