from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Running contrary to the facts: "Cold war historiography vividly illustrates how the selection of the counterfactual question to be asked generally anticipates the desired answer” ( Timothy Garton Ash).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Contrary to the facts; untrue.
- n. A claim, hypothesis, or other belief that is contrary to the facts.
from the GNU version of the Collaborative International Dictionary of English
- adj. contrary to fact; -- of assertions, ideas, assumptions.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. going counter to the facts (usually as a hypothesis)
counter- + factual (Wiktionary)