IPA: /mɛnˈdeɪʃəsli/
KK: /mɛnˈdeɪʃəsli/
In a way that involves lying or being dishonest.
He mendaciously claimed that he had completed the project on time.
Mendaciously → It is formed from "mendax" (meaning lying or deceitful) and the suffix "-ly" (meaning in a manner of). The word "mendaciously" means in a manner that is deceitful or characterized by lying.
Think of someone being deceitful or lying ('mendax') and how they do it 'in a manner' ('-ly'). This helps you remember that 'mendaciously' describes the way someone lies.