\Im*pen"i*tent\, a. [L. impaenitens; pref. im- not +
paenitens penitens: cf. F. imp['e]nitent. See {Penitent}.]
Not penitent; not repenting of sin; not contrite; of a hard
heart. ``They . . . died impenitent.'' --Milton. ``A careless
and impenitent heart.'' --Bp. Hall.

\Im*pen"i*tent\, n.
One who is not penitent. [R.]