offstage

adverb

1. off the stage or in the wings; away from the view of the audience (opposed to onstage).
2. in one’s private life rather than on the stage: Offstage the actress seemed rather plain.

adjective

3. not in view of the audience; backstage, in the wings, etc.: an offstage crash.
4. withheld from public view or attention; private: offstage political meetings.

adjective, adverb

1. out of the view of the audience; off the stage