The phrase "at outs" refers to a state of conflict or disagreement between people or groups. There are many synonyms that can be used to convey a similar meaning, such as at odds, in conflict, in disagreement, on bad terms, in dispute, or estranged. Other phrases that could be used to describe this state of conflict include having a falling out, being at loggerheads, being on the outs, or having a spat. No matter which term is used, the meaning is the same - there is a lack of harmony or agreement between people, and tensions are high. It is important to recognize when this state exists to attempt to resolve the issue and restore peace.