adj. Accustomed to, or employed in, desperate enterprises; reckless; hopeless.
The Century Dictionary and Cyclopedia
Lost to sight; hidden; in concealment; in ambush.
Being on a forlorn hope; sent on a desperate enterprise.
n. A soldier serving on a forlorn hope (in French enfant perdu); a person in desperate case.
n. One who is morally lost or abandoned.
n. In cookery, something concealed or ambuscaded: same as surprise.
Word Usage
"The decanter was created using the traditional and now-rare technique of cire perdue, meaning "lost wax," and is shaped with a flat bottom, like the decanters used on board ships in the 1820s."