Undetailed refers to something that lacks specific information or is not well-defined. Some antonyms for undetailed include detailed, precise, thorough, specific, comprehensive, elaborate, explicit, and defined. These words suggest a high level of specificity and attention to detail. For instance, detailed implies that something is described in great detail with specific information. Precise suggests accuracy and exactness, while thorough connotes a comprehensive and complete understanding of a topic. Elaborate refers to something that is complex and has many intricate details, while explicit implies clear and unambiguous communication. Defined suggests that something is clear and specific, leaving no room for ambiguity.