History
History
Synonyms
UK
US
Meaning:
clandestine

done secretly; kept secret

secret, sly

confidential

(that is to be kept) secret

secret

covert

(of glances, threats etc) hidden; disguised

clandestine, underhanded

furtive

done secretly so as not to attract attention

sneaky, secretive

off-the-record

not meant to be recorded or reported as official

confidential

private

of, for the use of, concerning, one person or group, not people in general; a soldier with the lowest rank in the army

personal, intimate

quieten

(to cause a person, thing) to become quiet

silence

secret

(that is to be) kept from the knowledge or view of others; of which others have no knowledge

hidden, unrevealed

shush

(used to call for silence)

silence

silence

the absence of sound; the condition of not speaking, answering (questions, spoken or written) or making comments etc

absence of sound, speech

subterranean

underground

hidden, underground

surreptitious

(of actions) done secretly

sneaky, secret

uncommunicative

not communicative

shy, silent

undercover

acting secretly

secret, spy

underhand

deceitful(ly)

deceitful

HUSH-HUSH as in Wiktionary
HUSH-HUSH as in Wikipedia