The antonyms for the phrase "made lustrous" include dull, tarnished, murky, cloudy, opaque, and dim. These words are often used to describe the opposite of something being shiny, polished, clean, or clear. The phrase "made lustrous" evokes a sense of brightness and clarity, favorable for describing jewelry or other objects that have been recently cleaned or polished. However, when we use antonyms like dull or tarnished, it often represents a sense of neglect, wear, or damage. These words are suitable for describing old or rusty objects that have lost their shine and value over time.