The term "put in writing" can be described using several antonyms, including "erase," "delete," "omit," "retract," and "discard." Erasing means to remove what has been written, while deleting refers to removing text or other data from a document or file. Omitting means leaving out something that should be included in a writing. Retracting is the opposite of putting in writing as it means to withdraw or take back what has already been recorded. Finally, discarding means disposing of something as unwanted or unimportant. These words are helpful in understanding and conveying the opposite of putting something in writing, which can have various meanings depending on the context.