Unbelievable Bastard Edit Meaning

1.

Several steps beyond a regular bastard, someone so treacherous, conniving, and evil that you can't believe how much of a bastard they really are. Typically uttered after the unbelievable bastard has done something shockingly wicked.

After seeing millions of bodies littered across the landscape, all I could do was turn to the man responsible and say, "you unbelievable bastard..."

See bastard, evil, asshole, douchebag, sick fuck