When we talk about something that is sliding out of a particular situation or location, we may want to find alternative words to add more variety to our writing or speech. Synonyms for sliding out of could be slipping away, gliding away, or escaping. Other options might include falling out of, drifting away, or descending from. If we're referring to a gradual departure, fading out, drifting off, or slowly slipping away could also be appropriate. Whatever phrase we choose, selecting the right synonym can add depth and nuance to our communications.