The antonyms for the word "casting slur" are praise, compliment, and tribute. While casting a slur involves making a disrespectful or derogatory remark about someone or something, praising or complimenting someone involves expressing admiration and appreciation for their qualities and actions. Similarly, paying tribute to someone involves acknowledging and honoring their contributions, achievements or sacrifices. Therefore, when confronted with a situation that demands you to express your opinion about someone or something, it's important to choose your words carefully, and opt for positivity and kindness rather than negativity and criticism. By doing so, you'll not only demonstrate your respect and consideration towards others but also foster a more harmonious and uplifting environment.