The word "discrete" is an adjective that describes something that is separate or distinct, and can have a number of antonyms to describe something that is not discrete. These antonyms include words like "continuous," "connected," "continuous," "united," "combined," "joined," and "integrated." These words are used to describe things that are not separated from one another, instead of being continuous and connected. For example, waves in the ocean are continuous and connected, whereas a collection of rocks on a beach is discrete because each rock is separate from the others. When trying to describe something that is not isolated or separate, one would use antonyms to "discrete.