Meliorative is an adjective that refers to something that improves or enhances a situation. Its antonyms or opposite words are deteriorating, worsening, declining, regressing, retrogressive, and deteriorative. When a situation becomes worse or regresses, it goes against the meliorative tendencies. For example, if an organization's productivity declines, it is not being meliorative. Similarly, if an individual's health deteriorates, it is not meliorative. The opposite of meliorative can also be described as impeding, hindering, or obstructive. Therefore, it is essential to understand the antonyms of meliorative to grasp the nuances of language and communicate effectively.