The concept of feeling oneself again is generally associated with positivity, energy, and stability. However, there are certain antonyms that can describe the opposite of this feeling. For instance, feeling unmotivated, uninspired, or lethargic could be considered antonyms. Feeling out of sorts, disillusioned, or disconnected from oneself could also be antonyms for feeling oneself. Other antonyms could include feeling dispirited, apathetic, or uncertain. In essence, any word that signifies a lack of positivity, energy, or stability could be considered an antonym for feeling oneself again. These antonyms reflect the opposite emotional and psychological states that one might experience.