The term 'middlemost' is used to describe something that is in the middle of a group or range. It can also be used to refer to the middle point between two extremes. The crossword solutions for this term are 'INCOMPLETE' (10 letters) and 'HALFWAY' (7 letters). INCOMPLETE implies that something is not finished or whole, while HALFWAY suggests that something is HALFWAY between two points. Therefore, these two words can be used to describe the concept of middlemost.