There are several synonyms for "soberer", which means more sober or less intoxicated. Among them are "clearer-headed", "more lucid", "less tipsy", "more abstemious", "more temperate", "less drunk", "less under the influence", and "more abstinent". Each of these synonyms conveys a similar idea - that someone is not as affected by alcohol or other substances as they were before. It's important to use the appropriate synonym depending on the context in which you're speaking or writing. For example, "less under the influence" might be used in a legal context, while "more temperate" might be used in a medical or health-related conversation.