Sobriety

Sobriety is the state of being sober, that is not under the influence of psychoactive drugs.

Other uses
In neuro-linguistic programming, sobriety is the state of not acting out in an addiction.

Links

 * Sobriety information website and forum for Alcoholics and Narcotics Anonymous
 * Wiktionary on the word

Nüchternheit Трезвость