hole-and-corner vs surreptitious

hole-and-corner and surreptitious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
hole-and-corner	No	Yes	No	No
surreptitious	No	Yes	No	No

As adjectives, hole-and-corner and surreptitious are synonyms defined as:

hole-and-corner and surreptitious: conducted with or marked by hidden aims or methods

Other synonyms of hole-and-corner include clandestine, cloak-and-dagger, hugger-mugger, hush-hush, secret, undercover, underground.

hole-and-corner (adjective)	surreptitious (adjective)
conducted with or marked by hidden aims or methods	marked by quiet and caution and secrecy; taking pains to avoid being observed
relating to the peripheral and unimportant aspects of life	conducted with or marked by hidden aims or methods