Antonyms for "most devitalized" include the words "energized," "vital," "animated," "lively," "robust," "vivacious," "dynamic," "exuberant," "spirited," and "thriving." These words signify the opposite of "most devitalized," which means lifeless, listless, weak, and lacking energy or enthusiasm. Some examples of antonyms in use in a sentence include, "She was energized after her morning workout," "The thriving garden was filled with vibrant colors," or "The vivacious child brought life to the party." The use of antonyms is an effective way to convey meaning and communicate effectively in both written and spoken communication.