Contrary to known or agreed facts; untrue.
Of or in comparison to a hypothetical state of the world.
A conditional statement in which the conditional clause is false.
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.
Incompatible, discrepant, contradictory.
Unable to be reconciled; opposed; uncompromising.
Something that cannot be reconciled.