Surreptitiously synonyms

Alex was also known to surreptitiously take a little sip himself now and then.

The introduction of secular books and papers, more or less surreptitiously, helped to spread the seeds of sedition.

It is thus different from legal fiction, by which a new rule is introduced surreptitiously, and under the pretence that no change has been made in the law, and from statutory legislation, in which the obligatory force of the rule is not supposed to depend upon its intrinsic fitness.

A sluice surreptitiously opened during a dark night and allowed to run for six hours may quite possibly double the value of his crop, but apparently the law is not often broken.

At the time of the Vatican Council (1869-1870) he was known to be opposed to the definition of Papal infallibility, and in a private letter to his bishop (Ullathorne), surreptitiously published, he denounced the "insolent and aggressive faction" that had pushed the matter forward.