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English definition of “fallacious”

fallacious

adjective uk   /fəˈleɪ.ʃəs/ formal us  
not correct: His argument is based on fallacious reasoning.Wrong
fallaciously
adverb uk   /-li/ us  
fallaciousness
noun [U] uk   /-nəs/ us  
(Definition of fallacious from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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