The antonyms for the word "most dogtired" are "energetic," "refreshed," "energized," "invigorated," "revitalized," and "rested." These words describe a state of being alert, lively, and full of vitality. When a person is "energetic," they are full of energy, whereas when they are "refreshed," they feel revitalized and reinvigorated. "Invigorated" implies a renewed strength and vigor, while "revitalized" suggests a new lease of life. "Rested" is a state of being relaxed and refreshed after a good night's sleep or rest. Using these antonyms can help to describe a person or situation that is opposite to feeling "most dogtired.