Definitions:

1. become more realistic verb
   • After thinking about the potential consequences of my plan, I sobered up.
2. become sober after excessive alcohol consumption verb
   • Keep them in bed until they sober up.
3. cause to become sober verb
   • A sobering thought
4. not affected by a chemical substance, especially alcohol adjective
   • The driver claimed to be sober, but a roadside test confirmed the opposite.

Synonyms:

• drab
• grave
• sedate
• serious
• sober up
• solemn
• unplayful

NearBy Words:

• sobering
• soberly
• soberness
• sobersided
• sobersides