The word "gat" is not a commonly known term in the English language. Therefore, it is difficult to provide specific antonyms for it. However, if we focus on the word "meat", some antonyms that can be used include plant-based, vegetarian, and vegan. These terms refer to diets that exclude meat and promote the consumption of fruit, vegetables, and grains. Other antonyms for meat could be terms like inedible, inedibility, or unpalatable. These terms signify that the food is not fit for human consumption due to its poor taste, odor, or texture. Ultimately, when searching for antonyms, it is essential to understand the meaning of the word and its context in the sentence.