Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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fallacious

fal·la·cious

fallacious

 
 
pronunciation:
f leI shs
features:
Word Combinations (adjective), Word Parts
part of speech: adjective
definition: based on unsound logic; in error; illogical.
You've unfortunately based your essay on a fallacious argument.
antonyms:
correct, logical, sound
similar words:
illogical, irrational, mistaken, unsound
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derivations: fallaciously (adv.), fallaciousness (n.)
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