"Wast like" is an informal slang term used to describe something that is considered worthless or unimportant. Antonyms for "wast like" are words that denote importance or value. Some of the antonyms for "wast like" are significant, valuable, worthwhile, important, useful, essential, and vital. These words suggest that something is relevant, worthwhile, and of great importance or interest. For example, a significant accomplishment has value and impact, while a valuable item has worth or significance. Essential things are fundamental and fundamental, while vital things are important for the sustenance of life. Using antonyms of "wast like" can help convey the importance and value of something or someone.