The word "nonfat" refers to something that contains little or no fat content. Its antonyms are words that denote the opposite, suggesting the presence or abundance of fat. Examples of such antonyms include "fatty," "oily," "greasy," "buttery," "fattening," "heavy," and "rich." These words indicate that the food or drink in question is high in fat, calories, or cholesterol. Other antonyms for "nonfat" include "full-fat," "whole," and "regular," which typically refer to dairy products, such as milk, cheese, and yogurt. It is essential to know these antonyms so that you can make informed choices about the kind of food and drinks you consume.