In English, "sober" is often used to describe someone who is not intoxicated, but the word can also be used more broadly to describe a serious, grave, or restrained attitude or demeanor. A few synonyms that capture this sense of the word include: clear-headed, somber, sedate, solemn, serious, grave, austere, straight-laced, and level-headed. These words all suggest a sense of responsible behavior or seriousness of purpose, whether related to alcohol or not. Additionally, the word "sober" can also be used to describe a person's style or aesthetic, and for that sense, it can be substituted with words like minimalist, simple, unadorned, or restrained.