"Right as rain" is an idiomatic expression used to express physical, mental, or emotional well-being. It gives a sense of being perfect or flawless. The antonyms for the word "right as rain" could include expressions like "sick as a dog," "blue," or "down in the dumps." These phrases convey the opposite meaning of being healthy, happy, or content. Alternatively, antonyms for "right as rain" could include words like imperfect, broken, or faulty, which would express the opposite sense of being flawless, exhibiting normal wear and tear, or being in a state of disrepair. Regardless of the context, antonyms for the phrase "right as rain" describe a state of being that is the polar opposite of wellbeing.