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.
Not compatible (with another thing); incompatible, discrepant, at odds.
Lacking internal consistency; self-contradicting; not compatible with itself.
Not consistent or coherent in thought or behavior.
Having the property that a contradiction can be derived.