Q 45: What is the opposite of "Oneness of the Worship of Allah"?
A--- The opposite is [Shrik] polytheism. There are two types of Shirk (15), namely: [Ash-Shirk Al-Akbar] the Major Shirk, and [Ash-Shirk Al-Asghar] the Minor Shirk (polytheism).
(15) There is a third type of Shirk, namely: [Ash-Shirk AI-Khafi] i.e. Inconspicuous Shirk. This type implies being inwardly dissatisfied with the inevitable condition that has been ordained for one by Allah; conscientiously lamenting that had you done or not done such and such or had you approached such and such you would have had a better status, etc. (Translator)