corruption
1 breach of trust, bribery, bribing, crookedness (informal) demoralization, dishonesty, extortion, fiddling (informal) fraud, fraudulency, graft (informal) jobbery, profiteering, shadiness, shady dealings (informal) unscrupulousness, venality
2 baseness, decadence, degeneration, degradation, depravity, evil, immorality, impurity, iniquity, perversion, profligacy, sinfulness, turpitude, vice, viciousness, wickedness
3 adulteration, debasement, decay, defilement, distortion, doctoring, falsification, foulness, infection, pollution, putrefaction, putrescence, rot, rottenness