The antonyms for "most done in" are words that describe energy and vitality, rather than exhaustion and fatigue. Some of these antonyms include energetic, lively, invigorated, refreshed, rejuvenated, and alive. These words denote a feeling of liveliness and enthusiasm that is the opposite of the tired and worn-out feeling that comes with being "most done in." They are perfect for describing an environment that is full of life and vigor, such as a bustling city, a lively concert, or a vibrant party. So the next time you're feeling low on energy, reach for these antonyms and let them help to rejuvenate and re-energize you.