名词极秘密

形容词极秘密的

及物动词守秘，遮盖

1. 机密的;不宜张扬的
Something that is hush-hush is secret and not to be discussed with other people.

e.g. Apparently there's a very hush-hush project under way up north...
貌似这里往北的地方有个非常机密的项目正在进行。
e.g. They were desperate to keep the marriage hush-hush.
他们拼命想要瞒住这桩婚事。

七彩网·英语单词

adj

1. conducted with or marked by hidden aims or methods

e.g. clandestine intelligence operations
cloak-and-dagger activities behind enemy lines
hole-and-corner intrigue
secret missions
a secret agent
secret sales of arms
surreptitious mobilization of troops
an undercover investigation
underground resistance

Synonym: clandestinecloak-and-daggerhole-and-corner(a)hugger-muggersecretsurreptitiousundercoverunderground