Cluelessly refers to a state of being unaware or lacking knowledge about a particular situation. Some synonyms for cluelessly include ignorantly, unconsciously, blindly, naively, and inadvertently. Ignorantly implies a lack of understanding or knowledge, while unconsciously refers to something that is done unintentionally or without realizing it. Blindly suggests a person is acting without proper judgment or reason. Naively refers to an innocent lack of understanding, while inadvertently suggests something done accidentally or without thought. It's essential to use synonyms appropriately, depending on the context, to convey the right meaning and tone of a sentence.