Below are possible answers for the crossword clue On the wagon.
become sober after excessive alcohol consumption; "Keep him in bed until he sobers up"
become more realistic; "After thinking about the potential consequences of his plan, he sobered up"
cause to become sober; "A sobering thought"
lacking brightness or color; dull; "drab faded curtains"; "sober Puritan grey"; "children in somber brown clothes"
not affected by a chemical substance (especially alcohol)
dignified and somber in manner or character and committed to keeping promises; "a grave God-fearing man"; "a quiet sedate nature"; "as sober as a judge"; "a solemn promise"; "the judge was solemn as he pronounced sentence"
completely lacking in playfulness
practicing complete abstinence from alcoholic beverages; "he's been dry for ten years"; "no thank you; I happen to be teetotal"
practice teetotalism and abstain from the consumption of alcoholic beverages
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