In-comparabilities, also known as incomparability, is defined as the state of being unable to compare. Some antonyms for in-comparabilities include comparability, similarity, sameness, and equivalence. Comparability refers to being of similar nature, while similarity is the quality of being alike. Sameness refers to the condition of not varying, while equivalence pertains to the state of being equal in measure or value. In-comparabilities might be applied to situations that defy comparison, such as trying to compare apples and oranges, while comparability and equivalence may be used to describe things that are more easily compared, such as two books on the same subject.