One of the mysteries of the English language finally explained.
In an unconscientious manner; without regard for conscience or duty; unscrupulously; irresponsibly.
Mid 17th century; earliest use found in Anthony Ascham (bap. 1614, d. 1650), diplomat and pamphleteer. From unconscientious + -ly.
In this article we explore how to impress employers with a spot-on CV.