1The company was accused of surreptitious advertising, disguising promotional content as genuine reviews.
2Can you think of a surreptitious way to gather information about the competitor's strategy without arousing suspicion?
3The surreptitious nature of the government's surveillance program was exposed by a whistleblower.
4Avoid surreptitious behavior, such as secretly monitoring your employees' email, as it can damage trust and lead to legal issues.
5Historians have long suspected that the ancient civilization's collapse was hastened by surreptitious trade agreements with rival nations.