Un-intelligently is an adverb that describes behavior that lacks intelligence or understanding. If you are trying to express the same sentiment, but don't want to use the word un-intelligently, there are a few synonyms that you could consider. Some options might include words like foolishly, stupidly, or ignorantly. Alternatively, you could use phrases like "without sense," "lacking comprehension," or "failing to grasp the situation." Ultimately, the best synonym will depend on the context and the specific tone that you want to convey. Think about which word or phrase will best capture the intended meaning and convey your message effectively.