Breadcrumb Home > Word of the Day Quiz Cite What Does It Mean? mendacity --Listen to the pronunciation: WAV format or AU format Helen had finally had enough of Henry's mendacity, and let him have it: "You lying creep, there's not an honest bone in your body!" "You mean-spirited creep, there's nothing but vitriol running through your veins!" "You disgusting creep, is there no limit to your vulgarity?" Fact Monster Word Quiz for Kids Infoplease Daily Almanac