The antonyms for the word "most relishable" can include adjectives such as unappetizing, bland, repulsive, distasteful, and unpalatable. When we use the word "most relishable," we indicate that something is highly satisfying or enjoyable. However, if something is unappetizing, it fails to stimulate our taste buds or pique our interest. Similarly, if something is distasteful or repulsive, we are likely to find it disgusting or unpleasant to consume. The opposite of something that is relishable is something that is intolerable or insipid, lacking any kind of interest or appeal.