Incongruous Mixture is a term used to describe a combination of elements that do not fit together. The term can be used to describe a variety of things, such as a dish made up of ingredients that don't go together, or a group of people with different backgrounds and beliefs. The crossword solution for this term is OLIO, which is an Italian word meaning a mixture or medley. OLIO is often used to refer to a stew or soup made up of a variety of ingredients, or a collection of miscellaneous items.