Read the sentence and use antonym context clues to determine the definition of mendacious.Although the boy claimed that he never lied, I had never met anyone so mendacious.What is the definition of mendacious?

The sentence contrasts the boy’s claim that he never lied with the description of him as “mendacious.” That contrast shows mendacious means inclined to lie or dishonest. So the correct choice is dishonest.

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