Ex-cogitate is a term that refers to the act of thinking or reflecting deeply about a particular issue or problem. This term has no direct antonyms, but we can consider some alternatives that convey opposite meanings. Some antonyms for ex-cogitate are acting impulsively, not thinking things through, or making hasty decisions without considering all the options. These antonyms imply that instead of reflecting thoughtfully, one acts rashly without considering the consequences. Alternatively, one could use words like ignore or neglect, indicating that one is not thinking about something rather than actively reflecting on it. Overall, antonyms for ex-cogitate will depend on the context and intended meaning of the sentence.