hush-hush

Adjective

conducted with or marked by hidden aims or methods

synonym

clandestine cloak-and-dagger hole-and-corner hugger-mugger secret surreptitious undercover underground
similar

covert

hush-hush vs clandestine hush-hush vs cloak-and-dagger hush-hush vs covert hush-hush vs hole-and-corner hush-hush vs hugger-mugger hush-hush vs secret hush-hush vs surreptitious hush-hush vs undercover hush-hush vs underground

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