stone sober

/stoʊnˈsoʊbər/
adjective
  1. Completely sober; not at all affected by alcohol or drugs.
    • The party ended early, and everyone left stone-sober.
    • After one glass of water, he was stone-sober and ready to drive.
    • She claimed to be stone-sober, but her slurred speech suggested otherwise.
Antonyms
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