Sweating out is a phrase that typically means to endure a tough situation or work hard to achieve something. The antonyms for this idiomatic expression may include coasting, relaxing, slacking off, taking it easy, chilling out, and breezing through. If someone sweats out a difficult exam, they may also be able to ace it with ease, without much effort or stress. Sweating out also means to purify the body by sweating excessively. The antonyms for this meaning include remaining fresh, staying clean, and keeping cool. Regardless of the context, the antonyms suggest an easier, more relaxed, and effortless approach to something that would otherwise require hard work and perseverance.