\Un*pi"tious\, a. 1. Impious; wicked. [Obs.] ``The life of the unpitous.'' --Wyclif (Prov. xv. 8). 2. Destitute of pity; pitiless. [Obs.] --Chaucer. -- {Un*pi"tous*ly}, adv. [Obs.] -- {Un*pi"tous*ness}, n. [Obs.] --Wyclif.
Webster's 1913 Dictionary