The phrase "right mind" is often used to describe someone who is rational, sane, or in a state of mental clarity. However, there are a variety of synonyms that can be used to convey similar meanings. Some alternatives to "right mind" could include "sound mind," "stable mind," "lucid mind," or "logical mind." Other options might include phrases like "mentally competent" or "cognitively aware." Ultimately, the choice of which synonym to use may depend on the context of the sentence or the specific connotations that the speaker wishes to convey. Regardless of the specific word choice, all of these synonyms are used to describe someone who is mentally capable and functioning well.