The phrase "wast good" means something that was once good, but is no longer or has been wasted. Its antonym, therefore, would be anything that is still good or has been saved from being wasted. Examples of antonyms for wast good include excellent, excellent condition, premium, usable, worthwhile, valuable, and worthy. Something that is wast good is often considered useless or unsatisfactory, while its antonyms are useful, satisfactory, and meet expectations. It is important to note that the opposite of wast good can also be considered salvageable or restorable, meaning that it can be brought back to a state of being good again.