The antonym for the word "in-discrete" is "discrete." Discrete means to be separate or distinct from others, showing individuality. Something that is not in-discrete is distinct, well-defined and clearly differentiated from something else. It signifies the quality of being well-defined, individual or separate, while in-discrete means something that is not individual or clearly defined, making it unclear or uncertain. The concept of discreteness is applied in various fields like mathematics, science, computing, and linguistics. For example, in mathematics, numbers can be discrete or continuous. In computing, discrete signals are binary or digital, while continuous signals are analog.