xxii An Appetizer: Logical Paradoxes and Self-Reference The second is the Grelling–Nelson paradox Divide all adjectives into two groups: autological, if and only if it describes itself, such as “English,” “short,” and “fourteen-letter;” and heterological, if and only if it does not describes itself, such as “wet,” “white,” and “long.” Now, is the adjective “heterological” autological or heterological?