There are many synonyms for the word "most squashed." Some of the most commonly used words include: flattened, compressed, crushed, pressed, smashed, squeezed, and compacted. These words can be used to describe objects that have been flattened or compressed, such as a piece of paper or a vegetable that has been mashed. "Flattened" is often used to describe objects that have been pressed down on a flat surface, while "crushed" is used to describe something that has been broken or destroyed under great pressure. "Squeezed" and "compacted" are commonly used to describe objects that have been compressed into a smaller space.