sober

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.

“sober Puritan grey”

Completely lacking in playfulness.

Dignified and somber in manner or character and committed to keeping promises.

“as sober as a judge”

Not affected by a chemical substance (especially alcohol).