Ex-cogitate means to stop thinking or ceasing to consider something. Antonyms for the word ex-cogitates include contemplate, deliberate, meditate, ponder, reflect, and ruminate. These words all describe a thoughtful and deliberate act of considering or exploring a subject or idea. While ex-cogitating implies a decision has been made or that one is no longer actively thinking about something, these antonyms suggest ongoing reflection and contemplation. They are useful for describing someone who is deeply engaged in exploring an idea or wrestling with a difficult decision. By using these antonyms, writers can add nuance and depth to their descriptions, characters, and themes.