spaced out

adjective3

1. •
   Positioned at regular intervals with a specified space between them.
2. •
   (informal) In a confused or oblivious mental state, especially as a result of drug-taking.
3. •
   (informal) Confused, stupefied, or disoriented through the action of a narcotic drug (or as if so intoxicated).

   • In my opinion, the drugged-out, spaced-out look on their faces is obviously because of the drugs they're taking. — 2006