reprobate (n.)
- arrant
 - backslider
 - bad
 - base
 - bastard
 - black
 - blackguard
 - blame
 - censure
 - criminal
 - cur
 - damn
 - damned
 - dark
 - debauchee
 - decadent
 - degenerate
 - evil
 - foul
 - good-for-nothing
 - heel
 - knave
 - knock
 - lecher
 - libertine
 - lost
 - low
 - lowlife
 - mean
 - miscreant
 - pervert
 - pimp
 - profligate
 - rake
 - rank
 - rap
 - rapscallion
 - rascal
 - recidivist
 - recreant
 - refuse
 - reject
 - reproach
 - roue
 - scalawag
 - scamp
 - scapegrace
 - scoundrel
 - secular
 - sinful
 - skin
 - temporal
 - trollop
 - vile
 - villain
 - wastrel
 - whore
 - wretch
 - wrong
 
reprobate (v.)
- accuse
 - anathematize
 - anathemize
 - arraign
 - arrant
 - bad
 - base
 - black
 - blackguard
 - blame
 - censure
 - condemn
 - corrupt
 - cur
 - damn
 - decry
 - degenerate
 - denounce
 - disapprove
 - dismiss
 - evil
 - foul
 - heel
 - impeach
 - impugn
 - indict
 - knock
 - low
 - mean
 - pervert
 - pimp
 - profane
 - rake
 - rank
 - rap
 - refuse
 - reject
 - reprehend
 - reproach
 - repudiate
 - scamp
 - skin
 - spurn
 - vile
 - whore
 - wrong
 
reprobate (adj.)
- abandoned
 - abominable
 - accursed
 - arrant
 - atrocious
 - bad
 - base
 - bastard
 - black
 - blackguardly
 - blamable
 - blame
 - blameworthy
 - contaminated
 - corrupt
 - corrupted
 - criminal
 - cursed
 - damn
 - damnable
 - damned
 - dark
 - debased
 - debauched
 - decadent
 - degenerate
 - degraded
 - depraved
 - despicable
 - disgraceful
 - dissolute
 - evil
 - execrable
 - flagitious
 - flagrant
 - fleshly
 - foul
 - godless
 - good-for-nothing
 - graceless
 - heel
 - heinous
 - immoral
 - improper
 - infamous
 - iniquitous
 - irredeemable
 - knavish
 - knock
 - libertine
 - licentious
 - lost
 - low
 - mean
 - monstrous
 - mundane
 - naughty
 - nefarious
 - notorious
 - peccant
 - perverted
 - polluted
 - profane
 - profligate
 - rake
 - rank
 - rascally
 - recreant
 - reprehensible
 - roguish
 - rotten
 - scandalous
 - scoundrelly
 - secular
 - shameful
 - shameless
 - sinful
 - tainted
 - temporal
 - unblessed
 - unconverted
 - unforgivable
 - unhallowed
 - unholy
 - unpardonable
 - unprincipled
 - unredeemed
 - unregenerate
 - unsanctified
 - unspeakable
 - unworthy
 - vicious
 - vile
 - villainous
 - vitiated
 - warped
 - wicked
 - worldly
 - wrong