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counterfactual

[koun-ter-fak-choo-uh l] /ˌkaʊn tərˈfæk tʃu əl/
noun, Logic.
1.
a conditional statement the first clause of which expresses something contrary to fact, as “If I had known.”.
Origin
1945-1950
1945-50; counter- + factual
Related forms
counterfact, noun
counterfactually, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for counter-factual

counterfactual

/ˌkauntəˈfæktʃʊəl/
adjective
1.
expressing what has not happened but could, would, or might under differing conditions
noun
2.
a conditional statement in which the first clause is a past tense subjunctive statement expressing something contrary to fact, as in: if she had hurried she would have caught the bus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for counter-factual

counterfactual

adj.

1946, from counter- + factual.

Online Etymology Dictionary, © 2010 Douglas Harper
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Difficulty index for counterfactual

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Word Value for counter

9
12
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