The phrase "fall in to" can have multiple opposite meanings depending on the context. In the case of emotions, the antonym for "fall in to" could be "rise above", meaning to overcome negative feelings or situations. Alternatively, "sink into" could also be an antonym, to descend further into sadness or despair. When it comes to physical actions, "climb out" could be used, suggesting the opposite motion to falling. Another antonym, in a more abstract sense, might be "break away", implying a separation from something or someone rather than falling into or becoming intertwined with it. Ultimately, antonyms for "fall in to" will depend on the specific context and usage of the phrase.