What does "iniquitous" mean?

Iniquitous: Characterized by iniquity; unjust; wicked; as, an iniquitous bargain; an iniquitous proceeding. Demagogues . . . bribed to this iniquitous service. Burke. -- Iniquitous, Wicked, Nefarious. Wicked is the generic term. Iniquitous is stronger, denoting a violation of the rights of others, usually by fraud or circumvention. Nefarious is still stronger, implying a breach of the most sacred obligations, and points more directly to the intrinsic badness of the deed.