falacia
fallacy; falsehood
noun fah-LAH-syah Rare
Origin: From Latin fallacia, 'deception'.
Usage Note
Falacia is a false or misleading argument presented as if it were valid — the core term in Spanish for a logical fallacy (falacia ad hominem, falacia del hombre de paja). It is stronger than error (mistake) and implies intentional or structural deception. Do not confuse with falsedad (falseness, a false statement) or mentira (lie).
Examples
"Su argumento es una falacia lógica."
Natural Translation
His argument is a logical fallacy.
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