Blueprinting refers to the process of creating a detailed plan or design for a particular project or task. However, there are several antonyms that can be used to describe the opposite of this process. One such word is "improvisation," which refers to the act of making something up on the spot, without any prior planning or preparation. Another antonym for "blueprinting" is "spontaneity," which refers to the freedom to act or express oneself without constraint or planning. Finally, "randomness" is also an antonym for "blueprinting," as it implies an absence of structure or order in the creation of something new.