What term refers to complete abstinence from alcohol?

The term that refers to complete abstinence from alcohol is "teetotal." This word is commonly used to describe individuals who choose not to consume alcoholic beverages at all. The concept of teetotalism emerged in the 19th century, often associated with movements advocating for alcohol abstinence for health, social, and moral reasons. Those who are teetotal typically advocate for a lifestyle free from the effects of alcohol, emphasizing benefits such as improved health and wellness.

The other terms provided do not pertain to alcohol abstinence. For example, "sundry" refers to various or diverse items, while "supplicate" means to ask or beg earnestly or humbly. "Sonorous" describes a sound that is deep, full, and rich in quality. None of these reflect the idea of abstaining from alcohol, highlighting the specificity and significance of the term "teetotal" in discussions about alcohol consumption.