The antonyms for the word "blueprinted" can vary depending on the context in which it's being used. However, some possible antonyms for "blueprinted" could be "unplanned," "unstructured," "improvised," "random," or "spontaneous." These antonyms suggest a lack of formal design or groundwork, implying a more fluid or free-form approach to a project, idea, or process. For example, while "blueprinted" might describe a detailed construction plan for a building, its antonyms could describe an informal or haphazard brainstorming session. Ultimately, the antonyms for a word like "blueprinted" help illustrate the wide range of possibilities for approaching any given project or task.