Dictionary definition · sober
verb
- cause to become sober"A sobering thought"
- become more realistic"After thinking about the potential consequences of his plan, he sobered up"
- become sober after excessive alcohol consumption"Keep him in bed until he sobers up"
adjective
- 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"
- lacking brightness or color; dull"drab faded curtains"
- completely lacking in playfulness
Source: Open English WordNet (CC BY 4.0).