Eclectic is to unvaried as cooperative is to _____coerciveobstinateself-indulgentbulbous

The answer is "coercive". The relationship between the words in the first pair is that they are opposites. "Eclectic" means deriving ideas, style, or taste from a broad and diverse range of sources, while "unvaried" means not varied or diverse. Similarly, "cooperative" means working or acting together willingly for a common purpose or benefit, while "coercive" means using force or threats to make someone do something against their will, which are also opposites.