The word "etiolated" refers to something that is pale or faded, often due to lack of light or nutrition. Antonyms for this word would therefore be those that suggest brightness or vibrancy. Some possible antonyms include vivid, brilliant, colorful, radiant, and glowing. These words evoke images of lively and robust objects or scenes. Other antonyms could include strong, robust, healthy, energetic or lively, as they imply strength and energy, rather than a lack of it. By using antonyms for the word "most etiolated", you can create a contrast and emphasize the vibrancy and liveliness of the object or scene in question, rather than its lack of color or vitality.