The phrase "rank out" typically means to churn out or produce in large quantities without much thought or care. Antonyms for this phrase would include terms like deliberate, thoughtful, and carefully crafted. Other words that could be used as antonyms for "rank out" might include phrases like handmade, artisanal, or bespoke, which all suggest a higher level of skill and attention to detail. Ultimately, the choice of antonym will depend on the context in which the phrase is being used, as well as the specific connotations or denotations that are most relevant to the situation at hand.