The phrase "well defined" can have different interpretations depending on the context. To provide a more precise description, some synonyms can be used. "Precise" and "clear-cut" are words that convey a definite and specific meaning. If the focus is on accuracy, "exact" and "meticulous" are applicable. "Unambiguous" and "explicit" both mean that the definition is conveyed without any confusion or uncertainty. For something that is easily understood and described, "distinct" and "crisp" can be used. When something is set up clearly, "systematic" and "methodical" convey a sense of order and structure. Overall, using these synonyms allows for a more focused and descriptive approach to the phrase "well defined".