The antonyms for "scissor out" can be "paste in," "insert," "retain," or "keep in." While "scissor out" refers to cutting or removing something, its antonyms imply adding or keeping something in place. For instance, if you are editing a document, you may choose to "paste in" a paragraph instead of "scissoring it out." Similarly, if you're working on a project where you want to keep all the details, you may "retain" a section instead of removing it. The antonyms for "scissor out" are helpful when you want to modify a document or project without removing essential information.