Contrary to fact or truth:
Seeming to be good, sound, correct, logical, etc. without really being so; plausible but not genuine
The definition of spurious is something that is not true.
Not faithful or loyal
Contrary to conscience, morality, or law:
going counter to the facts (usually as a hypothesis)
Find another word for counterfactual. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for counterfactual, like: false, specious, spurious, truthless, untrue, untruthful, wrong, true and contrary to fact.