unavailable

/ˌʌnəˈveɪləbəl/
adjective
  1. Not able to be used, reached, or obtained.
    • The manager is unavailable for a meeting until next week.
    • All the hotel rooms were unavailable during the holiday weekend.
    • The website is currently unavailable due to maintenance.
  2. Not free to talk or spend time with someone.
    • She was unavailable for comment after the announcement.
    • He's been emotionally unavailable since the breakup.
    • I tried calling, but she was unavailable and didn't return my message.