From The Collaborative International Dictionary of English v.0.48:
Reprobate \Rep"ro*bate\ (-b?t), a. [L. reprobatus, p. p. of reprobare to disapprove, condemn. See Reprieve, Reprove.] [1913 Webster] 1. Not enduring proof or trial; not of standard purity or fineness; disallowed; rejected. [Obs.] [1913 Webster]
Reprobate silver shall men call them, because the Lord hath rejected them. --Jer. vi. 30. [1913 Webster]
2. Abandoned to punishment; hence, morally abandoned and lost; given up to vice; depraved. [1913 Webster]
And strength, and art, are easily outdone By spirits reprobate. --Milton. [1913 Webster]
3. Of or pertaining to one who is given up to wickedness; as, reprobate conduct. "Reprobate desire." --Shak. [1913 Webster]
Syn: Abandoned; vitiated; depraved; corrupt; wicked; profligate; base; vile. See Abandoned. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Reprobate \Rep"ro*bate\, n. One morally abandoned and lost. [1913 Webster]
I acknowledge myself for a reprobate, a villain, a traitor to the king. --Sir W. Raleigh. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Reprobate \Rep"ro*bate\ (-b?t), v. t. [imp. & p. p. Reprobated (-b?`t?d); p. pr. & vb. n. Reprobating.] 1. To disapprove with detestation or marks of extreme dislike; to condemn as unworthy; to disallow; to reject. [1913 Webster]
Such an answer as this is reprobated and disallowed of in law; I do not believe it, unless the deed appears. --Ayliffe. [1913 Webster]
Every scheme, every person, recommended by one of them, was reprobated by the other. --Macaulay. [1913 Webster]
2. To abandon to punishment without hope of pardon. [1913 Webster]
Syn: To condemn; reprehend; censure; disown; abandon; reject. [1913 Webster]