Antonyms for "more darkened" include "brightened," "lightened," "illuminated," "glowed," and "shone." Instead of referring to a darker or dimmer location, these antonyms describe a space that is brighter or more illuminated, such as a well-lit room or a sunny day. Being able to use antonyms effectively can help add depth and nuance to writing or speech, giving a more accurate description of an object or location. Remember, antonyms are not always exact opposites, and sometimes it takes creative thinking to find the right word to use.