Dictionary

fallacious

adjective fal·la·cious \fə-ˈlā-shəs\

: containing a mistake : not true or accurate

Full Definition of FALLACIOUS

1
:  embodying a fallacy <a fallacious conclusion>
2
:  tending to deceive or mislead :  delusive
fal·la·cious·ly adverb
fal·la·cious·ness noun

Examples of FALLACIOUS

  1. <it's fallacious to say that something must exist because science hasn't proven its nonexistence>
  2. <consumers who harbor the fallacious belief that credit-card spending will never catch up with them>

First Known Use of FALLACIOUS

1509

Other Logic Terms

a posteriori, connotation, corollary, inference, mutually exclusive, paradox, postulate, syllogism

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