Synonyms of back stairs

Noun

1. backstairs, stairway, staircase

usage: a second staircase at the rear of a building

Adjective

1. backstair, backstairs, furtive, covert (vs. overt)

usage: secret and sly or sordid; "backstairs gossip"; "his low backstairs cunning"- A.L.Guerard; "backstairs intimacies"; "furtive behavior"