1. involving secret, underhand, or indirect methods; done in a sneaky or clandestine way
Usage: often used in the phrase 'backstair intrigue' or 'backstair politics'

1. a staircase in a building that is hidden from public view, typically used by servants or staff
Usage: usually used in plural form 'backstairs'

Examples

• The scandal involved backstair dealings between government officials.
• She used backstair methods to gain influence in the organization.
• The servants used the backstair to move through the mansion without being seen.
• Backstair gossip spread quickly through the office.
• The palace had a network of backstairs for staff to use.
• His rise to power was achieved through backstair maneuvering rather than merit.