The opposite of the term "staid out of sight" would be dynamic or vibrant, meaning something that is active, energetic, or conspicuous. It can refer to a person or a thing that attracts attention due to their exciting or entertaining behavior. Other antonyms could be flamboyant, flamboyant, or showy, suggesting something that is bold, daring, or ostentatious. Conversely, if one were to look for a calmer version of being "staid out of sight," they could use terms like subdued, understated, or tranquil. These words suggest something that is peaceful, serene, or relaxing, which could be an excellent contrast to the energy and excitement of dynamic or vibrant things.