Etymology
Advertisement

hush-hush (adj.)

1916, reduplication of hush.

Others are reading

Advertisement
Advertisement
Definitions of hush-hush

hush-hush (adj.)
conducted with or marked by hidden aims or methods;
Synonyms: clandestine / cloak-and-dagger / hole-and-corner / hugger-mugger / secret / surreptitious / undercover / underground
From wordnet.princeton.edu