offstage

(noun) a stage area out of sight of the audience. Synonyms: wing, backstage.

(adj) situated or taking place in the area of a stage not visible to the audience. Synonyms: offstage (vs. onstage). Example: "Offstage noises."

(adj) concealed from public view or attention. Synonyms: backstage. Example: "Offstage political meetings."

(adv) behind the scenes; not on stage. Example: "The actors were waiting offstage."

(adv) not in public. Example: "The deal was done offstage."