Characterized by graft

dishonest, crooked, underhanded, venal, mercenary, fraudulent, unscrupulous, profiteering, extortionate, taking bribes, bribable, unethical, shady*, on the pad*, on the take*, fixed*, bought*, crooked as a dog's hind leg*; see also dishonest 1, 2.

Depraved

low, debased, evil, nefarious; see wicked 1.

Inaccurate

fallacious, misleading, contaminated, defective; see unreliable 2, wrong 2.

To debase

pervert, vitiate, degrade, bribe, suborn, adulterate, depreciate, deprave, debauch, defile, demoralize, pollute, taint, contaminate, infect, stain, spoil, ruin, alloy, bastardize, blight, blemish, mark against, undermine, subvert, impair, mar, injure, harm, hurt, damage, deface, disfigure, deform, abuse, mistreat, misuse, dishonor, disgrace, despoil, violate, demean, lower, pull down, reduce, weaken, abase, poison, warp, mislead, misguide, cause to degenerate, cause to deteriorate; see also bribe.

Antonyms purify, clean*, restore. *

To render inaccurate

falsify, misrepresent, misstate, alter, garble, disguise, color, gloss over, varnish, counterfeit, adulterate, contaminate, taint, fabricate, invent, twist, warp, tamper with, doctor, fix*, pad*; see also disguise, forge 1. See syn. study at debase.