Great-bellied is a descriptive term used to refer to a person or animal with a large or protruding belly. It can be replaced with similar words like potbellied, paunchy, bloated, and corpulent. Potbellied primarily describes a person with a bulging belly, while paunchy emphasizes a round and sturdy belly. Bloated usually describes distension from gas or fluid, but can also be used to describe a swollen or enlarged belly. Corpulent is a more formal term used to describe someone who is overweight or obese. All these synonyms give an accurate description of the physical appearance of someone or something with a large belly.