sober

[ˈsoʊbər]

Definition:
1. Not affected by alcohol.
2. Sedate and rational.
3. When something or someone is sober, they are serious and calm.

Use 'sober' in a sentence:

1. I hadn't drunk a thing, I was completely sober.
2. After the funeral, everybody felt very sober.
3. We had to sober him up before taking him home.
4. No beer for me, I need to stay sober.