iniquity /ɪnˈɪkwɪti/noun 2forms 1phrases 1 noun2 •Deviation from what is right; gross injustice, sin, wickedness.If you be so fond ouer her iniquity, giue her patent to offend, for if it touches not you, it comes neere no body. — 1603 •An act of great injustice or unfairness; a sinful or wicked act; an unconscionable deed.For this is an heinous crime, yea, it is an iniquitie to bee punished by the Judges. — 1611 formsiniquities Phrases with iniquity sink of iniquityA place where criminal activity is rife; a resort of criminals.