Telling the truth or giving a true result; exact; not defective or faulty
Deviating only slightly or within acceptable limits.
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.
Contrary to known or agreed facts; untrue.
Of or in comparison to a hypothetical state of the world.