Men‐da″cious (?), a. [L. mendax, -acis, lying, cf. mentiri to lie.] 1. Given to deception or falsehood; lying; as, a mendacious person.
2. False; counterfeit; containing falsehood; as, a mendacious statement.
— Men‐da″cious‐ly, adv. — Men‐da″cious‐ness, n.