corruptest
cor-rupt-est
adjective
Having the highest degree of moral depravity, dishonesty, or unethical behaviour.
"He was considered the corruptest official in the entire department."
Thesaurus
Synonyms: buy, bribe, grease one's palms, corrupt, debase, pervert, demoralise, subvert, misdirect, profane, demoralize, debauch