 The term autonomy is used for oppositeness of meaning and there are several ways in which lexemes can stand in opposition to each other. Gradable autonomy is a relationship where the opposition is a matter of degree rather than absolute. This type of opposition is usually associated with adjectives which are mutually exclusive, gradable and represent different points along a scale. Often their definition varies according to the referent and the norm against which the referent is being assessed. Non-gradable or binary autonomy exhibits an absolute opposition between two incompatible terms where one is the opposite of the other. General incompatibility can be thought of as a relation of exclusion. For example in the set of color terms the meaning of blue is incompatible with the meaning of red as well as with the meanings of the other color terms. The sets themselves can be ordered, for example the days of the week, or unordered as shown in the set of kitchen utensils. Relational antonyms involve movement or orientation in opposite directions and are thus also called directional opposites. Reverseives normally exhibit a relation between verbs describing movement in opposite directions, whereas converses are lexemes which describe a relation between two items from alternative viewpoints. If A is above B, then B is below A. If A buys something from B, then B sells something to A. To summarize, autonomy is a highly complex sense relation with many facets and variants.