The word "bluepencilling" refers to the act of editing, revising or censoring a written work. Some antonyms of this word might include "adding", "expanding", "freeing", or "liberating". When we add to a document, we are doing the opposite of bluepencilling- instead of cutting out unnecessary material, we are adding more detail or information. Similarly, expanding refers to the process of making something bigger, which is the opposite of cutting it down. When we free a piece of writing, we are removing any restrictions or limitations, giving it more breathing room. Finally, to liberate something is to set it free from control or confinement, which is the opposite of censorship.