The phrase "sweating it out" implies that someone is working hard and putting in effort to achieve a goal or overcome a challenge. However, there are antonyms for this phrase that suggest a lack of effort or difficulty. "Coasting" or "slacking off" imply a lack of effort or a laziness, while "taking it easy" or "relaxing" suggest a more laid-back approach. "Giving up" or "surrendering" suggest that someone has given up on a goal or challenge, while "avoiding" or "evading" suggests that someone is actively trying to avoid the challenge altogether. In conclusion, the antonyms for "sweating it out" suggest a lack of effort, difficulty, or avoidance.