The antonyms for the word "in spirit" are quite clear. The opposite of encouraging or uplifting is discouraging or disheartening. When someone acts in a demotivating or pessimistic manner, they tend to drain one's energy and enthusiasm. They rob one of their zeal and positivity. Similarly, words like depressing, saddening, and deflating are antonyms to "in spirit." When people constantly emphasize the negative aspects of something, it can become quite debilitating, crushing one's ability to perform well or enjoy life. Therefore, it is essential to surround oneself with positive and inspiring people and ideas to live life fully and in high spirits.