The antonyms for the word "un-meditated" include words like premeditated, calculated, deliberate, planned, considered and thoughtful. These words describe actions, decisions or thoughts that are carefully planned or taken after careful consideration. When something is premeditated, it means that it was planned in advance, while calculated means that it was done in a planned and deliberate manner. Deliberate means that the action or decision was taken with careful consideration of all factors involved. Similarly, planned, considered and thoughtful indicate that the action or decision was taken after careful planning or thought. Overall, these antonyms help to convey the opposite meaning of un-meditated and emphasize the importance of careful planning and thoughts.