lying

adjective

human position in which the body is more or less horizontal and supported along its length by the surface underneath
act or instance of being in a horizontal position or, more generally, being or existing

Pronunciation: /ˈlaɪ.ɪŋ/

Etymology: lie (“to intentionally give false information”) + -ing.

Tending to tell lies, untruthful, mendacious
“Gloster: Then, Saunder, sit there, the lyingest knave in Christendom.”
“Sly: Ask Marian Hacket, the fat ale-wife of Wincot, if she know me not: if she say I am not fourteen pence on the score for sheer ale, score me up for the lyingest knave in Christendom.”

Etymology: lie (“to intentionally give false information”) + -ing.

An act or telling a lie or falsehood; the practice of telling lies.
“[W]hether a man would fain be pleased with sin, or be quiet and fearless when he hath sinned, or continue in it, or persuade others to it, he must do it by false propositions, by lyings, and such weak discourses as none can believe but such as are born fools, or such as have made themselves so, or are made so by others.”
“Trump’s lying is no less constant or blatant than in 2016, but by now it feels familiar, already priced in. What more is there to say about the “war on truth” a decade into Trump’s political career?”

Etymology: lye. (a chemical liquid)